Summit's New Pro LS Cams Are Here!

Summit Racing Pro LS camshafts give LS owners and enthusiasts an affordable option for upgrading their LS-based cars and trucks. In this video, Summit Racing tech adviser Carl Pritts takes you through all the options available in this new cam line.
www.summitracing.com/search/b...

[@johnbehneman1546]

Great education!!!! I learned so much!!!! Thanks for sharing.

[@armancha23]

Ordered 8718, stoked to install and tune it! Volant intake, jdm headers, MBRP exhaust. 05 yukon 5.3, beeefffyyyy!

[@JadXtreme]

How did your cam swap go?

[@armancha23]

@@JadXtreme the o-ring on oil pump broke seal causing motor to seize.... R.I.P. so I did a 6.0 LQ9 and tuned it into a beast, sucked I couldnt even add the cam i had just installed 3 weeks prior due to core swap and 6.0 warranty.

[@markjohn151]

Hey i got the sum-8712 drop in cam on a 6.0 lq4 stock springs and stock stall im missing my upstream o2 sensors and my maf is un hooked it wont run with my maf hooked up would that be from my o2 sensors

[@mekaarrington6958]

i have a 99 z71 with lm7 5.3 862 heads and i really like the 8714 and would a 3200 stall work fine with this one

[@yahvemartinez8378]

What’s a good cam for my stock Ls2 vette 6 speed? Was looking at the 8707-1 cam with springs kit

[@austingreen1338]

Would the stage 4 work on a lq9 flat top engine with 799 heads? I know ptv will be close

[@jaimeedwards1269]

i have a 08 sierra 5.3 2wd daily driver i will eventually install a turbo and make between 500-600 whp with mild idle not aggressive which cam would you recommend?

[@fbanda20]

No positive displacement cams for the LSA?

[@l8tapex]

Summit Racing® Pro LS Vortec Truck Swap Camshafts SUM-8720? Made this purchase . Does this require a new stall TC? Any periphery support on the LY6 for this cam.

[@thedobermangang3503]

got a question for u ..i got a 1990 k5 blazer 700r trans 2000 to 2400 torque converter in it and im thinking about buying this race motor it has 12.5 to 1 sbc 355 030 over with elgin e-1090p solid flat tappet cam with scorpion 1.6 rockers for total lift of 573 intake 594 exhust can i use the torque converter i have on this engine,,..i no i got alot of things to change because it is a tbi fuel injection

[@jappsautomotive4210]

I was waiting on a word about the summit 8702 explanation.

[@cristianh8]

What’s the difference between sum-8713 vs sum-8713-2-bhv. I notice the LSA is 112+5 and the one with the kit is just 112

[@DaveQRacing]

On the 8710 cam, how much is “milled slightly”? Thanks

[@plasticfork2449]

Would I need a converter with the 8712?

[@Free-dom1337]

Whats a good Cam kit for my 5.7 350, for my 02 z28 Camaro not somethin too crazy and loud p.s I live in Cali

[@robertrogers3149]

I have an 03 GMC sierra 3/4 ton 6.0 I pull a lot and daily drive I want a cam with long tube headers which cam would work the best?

[@johnmills837]

Stage 1 High Lift

[@shaunweeks1965]

What type of hp is the 8707 cam putting out 2002 camaro, long tubes, k&n cold air . Anybody ran this yet??

[@applebitefool]

Hey Summit, my towing/grocery getter is an 07 Suburban 2500 with a gen 4 6.0 and Ls6 springs. Stock converter, with long tubes and stock intake. Going to delete vvt. Based on your description, I was looking at your 8719, its only available as a kit the onsite, should I be looking at the 8701 instead? This truck will have a 75mm turbo eventually if that makes a difference. Thanks for your service

[@SummitRacing]

Either camshaft will work fine in your application. For a true tow rig/daily driver, SUM-8719R1 is a better choice due to its smoother idle and better low-end torque.

[@shortbed70]

What’s a good cam choice for a 150 shot 5.3 with cathedral port heads and a carb? None of them really have much info on forced induction besides turbo.

[@jdubcbr600]

Magic stick!

[@Fast85CamaroLSX]

I bought the Summit Pro LS sum-8708 stage 3 cam kit with springs and doing a 750 mechanical secondary carb and MSD LS 6014 conversion on my 2005 5.3 with ported and polished 706 heads and th350 transmission...going in a 3rd gen camaro..just trying to figure out if I can stock length pushrods and what lifters do I need to use

[@SummitRacing]

I suggest using a Chromoly pushrod and SUM-HT215-16 lifters. You will need to measure for the correct pushrod length. You can find more information here: help.summitracing.com/app/answers/detail/a_id/3757/kw/pushrod%20length

[@Titoo.1]

I have a 05 5.3 Silverado, i want a relatively rough idle without having to upgrade things like a stock coverter , any recommendations? Preferably stage 1-2

[@SummitRacing]

Thank you for your question. SUM-8701 is considered the stage 2 for stock springs. Most of our customers prefer the .600 lift version of that cam that is designed around common TFS-16918-16 beehive springs. The cam is easy on the valvetrain and easy to tune, but makes considerable power.

[@leal97-]

By deeper gear do you mean lower ratio?

[@mrmidnight32]

What is the most comparable for the Company 54-454-11 cam with good lope?

[@SummitRacing]

Hello CK_32m, The Stage 2 SUM-8707 226/268 113 + 3 .600/.600 would be the closest. The Stage 3 SUM-8710 is a little bigger at 230/242 113 LSA +3 advance .625/.605 lift

[@chrishansen7004]

What's your guys recommendation for an LS swapped s10? I'm looking to get as much power as I possibly can with as little mpg loss around 1-2 at most on highway

[@SummitRacing]

Hi Chris, Sum-8719R1 is a great cam and is about the biggest you could run without excessive overlap that wastes fuel. Another great cam that’s a little more tame and intended for towing with excellent midrange is Sum-8718R1. www.summitracing.com/search/part-type/camshafts/product-line/summit-racing-pro-ls-vortec-truck-swap-camshafts

[@outdoorsinminnesota4100]

I have a 2001 5.3 silverado and it’s my daily driver and I pull a boat often so I kinda just want it to have more power for fun but still push good low rpm and be reliable any recommendations on cam selections ?

[@SummitRacing]

Our SUM-8718R1 Stage 1 truck tow/RV cam is a great choice, with a 750-6,000 rpm operating range. It’s a drop-in camshaft, but on higher-mileage vehicles, SUM-8718-1 is recommended. This kit contains the SUM-8718R1 cam, beehive springs, valve locks, and valve stem seals. It’ll work with your stock torque converter, but ECM tuning is required. www.summitracing.com/parts/sum-8718r1

[@frankperilli4112]

Have a 2003 chevy ss 6.0. looking for mild upgrade without having to do the springs. Thanks

[@0Ruben0]

Have you installed the camshaft ?

[@jonbanados6324]

Would a stage 1 drop in truck cam or stage 1 turbo work better for 5.3 lm7 single gt45. Going in a suburban.

[@SummitRacing]

Thank you for your question. SUM-8712 would be a good choice if valve springs aren’t upgraded. SUM-8719 is the same duration with more lift and is designed for use with LS6 springs. It would be great for a heavy vehicle. If you could move to a set of .600 lift 918 style springs and a 2800 converter at some point, the SUM-8720 would be a great match and make the most power.

[@robertestrada6729]

I have an 03’ 6.0 LQ4, I’m just doing an LS3 heads/intake top end swap, motor is going into a 1967 Camaro. What cam can I use for this build without fly cutting ???

[@SummitRacing]

Thank you for your question. With big valve unmilled LS3 heads, .045 net piston to head clearance, and true flat top pistons; The 234 degree duration stage 4 SUM-8711 is the largest we have tested and recommend. That being said, we always recommend you check piston to valve. Our minimum targets are .060 intake and .090 exhaust.

[@kimw4323]

whats the most aggressive cam i can get with my set up no further parts.... im running cold air, full exhaust..headers, xpipe, corsa xtreme...ls6 intake, 3.42 rear end, i will change springs, rods, harmonic bal, radiator/therm.. dont want to do heads, torque con. or anything else!!! my wants in this pocket.. sound/power as much as i can in this box!! please!! LS1 2001 vette with the mid generation upgrades!!

[@streetfighterracing1583]

6 speed or auto? just seen the 3.42... but thought that was 6speed only if you say you don’t want to replace converter then you have A4. Anyways stage 3 for 6Speed but you will have to do valve springs. If you are Auto then the stage 2 is max but will be a PIG until you get up to ab 3000 RPM

[@cristianh8]

I have the summ 8719 in a LS swapped c10 what stall do you guys recommend? I’m running a built 4l60e

[@pauljordan7465]

3500

[@Funtimes670]

Would these work good with the stock manifolds or would it not be worth it? The exhaust after will be 3 inch. LS swap into an obs truck.

[@johnmills837]

Yep. Truck manifolds are good.

[@ralphnapierii1184]

What transmission are you running?

[@streetking9340]

I have a 5.3 09 block out of a impla is a truck cam good for this block or the other type cam

[@CaptnCall]

I put the CCA-SUMLSGT100 cam in my LS swapped Fox body and its incredible the difference it made. The specs. are 216/222 .561/.566 111 degrees LSA . This cam is made by Comp Cams and isn't in this video and haven't seen it listed in recent catalogs. Works with stock torque converter and requires idle tuning. Couldn't be happier with it.

[@streetking9340]

Which cam is best for a N/a 2009 5.3 with 243 heads that will be used for the weekend street warrior

[@marlonjones7997]

Brian Tooley stage 1 low lift truck cam

[@Fast85CamaroLSX]

Can I use stock pushrods on the sum-8708 stage 3 cam and what lifters should I use?

[@SummitRacing]

With the extended rpm range and increased spring pressure needed for this camshaft, I suggest using a set of Summit Racing Chromoly Pushrods to reduce deflection and ensure accurate valvetrain action.

[@Keeterbob]

For the 8701. When you say stock converter, is that a typical stock converter ? I’m doing a swap and using the stock TH350.

[@SummitRacing]

Thank you for your question. A typical converter is in the 1500 rpm range, although some of the performance oriented versions like a trailblazer SS can flash as high as 2200. Torque converters are one of the most important parts of the puzzle to get the engine up “on the cam”. Feel free to give us a call for more detailed info.

[@Keeterbob]

@@SummitRacing you didn’t answer my question.

[@johngray8395]

I know this came out a year ago but jus popped up on my view just now and I have a question. what's the best can to get with a choppy sound for a 04/4.8 I want to keep it mostly stock for a daily driver

[@SummitRacing]

John, there are a couple good choices. SUM-8719 is a 209 @ .050 cam with good lift and would probably be the best choice for a daily driver with a stock converter with a 4.8. You can set the idle speed at any level to induce just the right amount. The more radical sounding version that would work if you weren’t doing too much towing and/or it was a stick is SUM-8720. This is a 218@.050 cam with .600 lift and makes a ton of power. It’s probably a step too large for a 4.8, but quite a few people love it anyway.

[@johngray8395]

@@SummitRacing cool and I hardly do any towing jus small stuff and the motor has 233,425 miles on it now and still a daily driven motor still strong I was jus wondering if she has too many easy driven miles for a choppy cam leaving everything stock

[@StuntDummyLives]

@@johngray8395 Hey, John. I'm about to build a 05/4.8 and my needs are the same as what you posted here last year. I was wondering if you ever got your cam installed, which one you used, and if you're happy with it? Does it sound choppy at idle?

[@charlesthorpe3179]

I have a gen 4 5.3 it's an ly5 if I'm not mistaken. Will be going into a car. Will the stage 4 fit with stock heads/rotating assembly?

[@SummitRacing]

Hello Charles, while we always recommending checking piston to valve clearance - yes the Summit Stage 1-4 are designed to fit with true flat top pistons. Stage 4 is pretty serious for a 5.3L and we’d invite you to give us a call to discuss based on your vehicles weight, gear, converter, etc. Assuming you’ve got quite a bit of converter and gear and don’t mind the idle; there are also a few alternatives. SUM-8708 is the standard stage 3. SUM-8710 is also a stage 3 and gives you a little more piston to valve clearance. SUM-8711 is also a stage 4, but gives you about .015” more piston to valve clearance versus the SUM-8709.

[@charlesthorpe3179]

@@SummitRacing thank you for the prompt response!

[@DeeFoo]

Would I need a tune for the drop in truck cam stage 1

[@SummitRacing]

Thank you for the question. The SUM-8718 can run without, but a tune is still very beneficial. SUM-8712 or SUM-8719 are slightly bigger and can run temporarily until a tune can be acquired. It’s best to plan on getting a tune anytime you are doing a cam swap to maximize the benefits. www.summitracing.com/

[@darrellhughes6773]

I hve a Lq4 6.0L iron block 03yr, bore 4.070, 4" stroke 6.125 rods NA waiting for dis kit sum R58400706 want make 600hp an better wat cam do y"all recommend nt to choppy tho add nitrous bout 200 shot plus it's a daily driver 96 SS Impala.

[@cvoxoisgodly]

I have a 4.8 04 Sierra. Not looking for a full blown CAM. I still daily drive, what cam u suggest

[@SummitRacing]

A good choice would be the SUM-8719. Its designed to work with LS6 springs and will make good power in a 4.8 without losing low end torque.

[@big6domino925]

I have a 1992 Chevy Silverado and i am doing the LS swap 6.0 out of a 2003 Escalade. I pull a horse trailer and want to play a little from red light to red light when I'm without my trailer which summit cam would get me the best of both worlds

[@SummitRacing]

Thank you for your question. SUM-8718 is our drop-in towing cam and would pick up power throughout the range and add more rpm up to. SUM-8712 drop-in trades just a bit of off-idle torque for more power up top and the higher lift version SUM-8719 for use with LS6 springs makes a bit more power through the range and higher yet due to the increased spring rate. Any will make you happy, but this will give you an idea of what to expect.

[@CaptnCall]

Do these cams come in either 3 bolt or 1 bolt to fit early or late LS engines?

[@SummitRacing]

Wayne, Summit cams are available in 3 bolt configurations only at the present time. These fit all Gen 3 engines. If you have a Gen. 4 engine with the early 24X reluctor wheel, you can use a single-pole timing set like the Summit Pro LS Billet SUM-G6643-1X. If you have a Gen. 4 engine with the later 58X reluctor wheel, you can use the SUM-G6647-4X timing chain set.

[@projectgattago]

Has the Stage 1 turbo cam ( SUM-8715) been discontinued?

[@GweGwe-lu9ob]

Does anyone know if this will work in a lm7 vortec engine just wonder help please !!!!!

[@SummitRacing]

Hello. Yes, Summit has 21 cams for LS and Vortec Gen. 3 and 4 engines. The truck specific ones can be found here: www.summitracing.com/search/brand/summit-racing/product-line/summit-racing-pro-ls-vortec-truck-swap-camshafts?autoview=SKU&ibanner=SREPD5 Please have a look and give Summit a call for the one that best fits your needs!

[@rtj49]

Do the smaller cams kill mpg? Is there any cams that help mpg, or are the factory cams best for mpg?

[@SummitRacing]

The Summit Pro LS Stage 1 truck cams can increase mileage. This is because they produce more torque down low and the transmission doesn’t have to downshift as often.

[@Bri.4n]

@@SummitRacing what about the automotive cams

[@MOY5462]

Can i use the 8707 in a gen 4 5.3 after DOD? And what are hp gains? Using 6l80e with longtubes and tbss intake

[@SummitRacing]

Ulises, the SUM-8707 would be an excellent match, but it’s a good idea to go for a 2800+ converter. We have other more truck specific cams meant to work with stock converters if needed. Please give us a call to dial in the best Pro LS Cam for you.

[@SummitRacing]

Ulises, the SUM-8707 would be an excellent match, but it’s a good idea to go for a 2800+ converter. We have other more truck specific cams meant to work with stock converters if needed. Please give us a call to dial in the best Pro LS Cam for you.

[@SummitRacing]

Ulises, the SUM-8707 would be an excellent match, but it’s a good idea to go for a 2800+ converter. We have other more truck specific cams meant to work with stock converters if needed. Please give us a call to dial in the best Pro LS Cam for you.

[@ivansbc6961]

you need to have a turbo to use the cam SUM-8706??

[@SummitRacing]

Hello Ivan. Summit Racing carries a wide variety of turbos from VS racing, Precision, Borg-Warner and others. Sizing the turbo to your application (weight, converter, gear, usage) and power target is something we can help you with. The Summit SUM-8706 is a very adaptable camshaft that works with a wide variety of turbos and will bring the boost on quickly and make power well into the higher RPM ranges. It also makes very good power naturally aspirated so it makes sense in an engine that is not yet boosted, but will be in the near future.

[@Mid-Atlantic_Outdoors]

Do the turbo cams work well for nitrous also?

[@UXOrdnance]

Nitrous Cams like longer exhaust duration, Turbo Cams are best for Turbos only

[@Onhaey]

Wish I had known about the other turbo cams offered before I bought the stage 2. The other cams did not come up on the website when looking at the pro LS cams. Bummer

[@jah918]

Yeahno how do you like the stage 2? I just bought it for my 5.3 swap, is it even worth getting a stall?

[@alanbrossett4744]

@@jah918 i wouldn't even get a cam with out a stall. I mean if you had to...maybe stage one but with a stalls is where it really will make power.

[@cbr1thou]

Im going to give you a refund and ship you the right cam.

[@cutlassrkt]

@@jah918 If you want to go fast then you need a good converter. It will be annoying pushing through the brakes at idle with stock converter stall speed.

[@philistineau]

Why? The stage 2 you got looks like a great cam. You done did good.

[@tylerjones6516]

Im using the summit 8711 in my L92. Will I have enough piston to valve clearance?

[@SummitRacing]

Thank you for your question. Summit Pro LS cams stages 1-4 are intended to work without flycutting, but we always recommended checking to be sure. Stage 4 extra clearance version SUM-8711 should give you room to mill .015” off the heads and still hit our recommended .060/.090 target.

[@1232334inf34]

Hey how is the cam? I'm looking to get it, want to know if it is worth it.. did you loose any low end torque and is it easy to drive for a daily driver? Looking to put it on a swapped out L92 1983 suburban

[@juliantinajero8931]

What cam is better chevy 6.2 2011 stall 2200 delete DOD and vvt is swap in camaro 89

[@SummitRacing]

Hello Julian, the Stage 2 part number SUM-8707 would be an excellent choice with that torque converter. www.summitracing.com/parts/sum-8707

[@Jansson18]

Anyone tried stage 3/4 truck cam ? 8713 / 8714 on a 5.3?

[@streetfighterracing1583]

Robin Fogelberg stage 3 Automotive cam, it was nicely made and shipped out of Texas... so that narrows down who’s grinding them... mine runs great and sounds good through factory manifolds but putting long tube headers on this weekend.

[@forged_billions2]

Would stage 3 turbo work well with ls7 ?

[@SummitRacing]

Thank you for your question. The cams are advertised with lift for 1.7 rockers, but are designed to work with the common .670 lift springs with a 1.8 ratio. TFS-2500287P spring packs with Ti retainers would be a good example. The Summit Turbo Cams would work well with the LS7. With a 427 cubic inch engine, the Turbo Stage 2 SUM-8706 would bring the power on early and hold well. The Turbo Stage 3 SUM-8716 is also a good choice and would work very well in the mid to high range.

[@pedroreyes2860]

So for a stage 1 cam a stock converter is good?

[@SummitRacing]

SUM-8718R1 (Stage 1 Truck Tow/RV), SUM-8712R1 (Stage 1 Truck Drop-in), and SUM-8719R1 (Stage 1 Truck High-lift) can all be used with your stock torque converter. The first two can be used with stock valve springs, although LS6 valve springs (SUM-174002) are recommended for all of these cams.

[@davidl5121]

With Stage 3 truck summit racing package deal, will it need a Dyno tune?

[@theoriginal_sb7045]

dyno or remote tune

[@davidl5121]

@@theoriginal_sb7045 what kind of stall do you recommend

[@utahcountypicazospage5412]

The spread on the truck cams seems to big for how small 5.3 valves are stock .they might work good with 315 heads because those have big valves but even then the low lift and separation between intake and exhaust would kill truck torque because they don’t have that much compression a tighter intake and exhaust is making quick torque and low lift makes torque sooner but for the stage 3 and 4 truck seems to low of lift for the duration just my two cents

[@O3h529]

The 317 cast cathedral head makes the least power of any cathedral port. The is a thing called, "coeffiecent of discharge", which compares valve diameter to port volume and bore diameter. So a larger valve will not necessarily flow more air if the chamber is shrouded more by a smaller diameter bore size. If you look at how air flows around a valve, the seat in particular , which is the most restrictive part of the port, you will find this to be true. Some experts also say the 317 head has the most inefficient chamber and the only way to improve it is to have cnc work done there. Also, the 862 & 706 heads with their small, 1.89" intake valve still flow upwards of 230cfm, in stock form. Or enough to support 460+, hp. Not knocking Summits came, but... A BTR, stage 2 truck cam with 212/218 degrees duration@.050 lift will make 420+ hp on an otherwise stock 5.3 with the TBSS or NBSS intake & long tube headers & factory heads. Replacing the stock heads with 317's will drop the compression .5 of a point and power will suffer everywhere. This has been dyno proven.

[@jermeygonzales2236]

@@O3h529 what cam would u recommend for a 408?

[@TOMVUTHEPIMP]

You have zero clue on what youre talking about

[@vilfainga7481]

I have a 2004 H2 6.0L stock n I want a camshaft that will make drive faster. Which one should I put in?

[@SummitRacing]

Thank you for your question. There are several options depending on whether you have a stock stall converter and what kind of idle quality you are looking for. We recommend looking at SUM-8712 (drop in) or high lift version SUM-8719 (LS6 springs recommended) to extend the rpm range. The next step up is SUM-8701 (drop in) or the high lift version SUM-8720 (TFS-16918-16 springs recommended). These are about the most recommended with stock torque converters. Feel free to give our tech department a call to discuss what is right for you.

[@vilfainga7481]

@@SummitRacing thank u so much. Your the best👍👍

[@krgreenlaw85]

Can I put the sum 8712 stage 1in my lc9 ?

[@SummitRacing]

Thank you for your question. SUM-8712 is an excellent choice for an LC9. Great power and works with a stock converter as well. If you wanted to add a set of LS6 springs to it, SUM-8719 is the higher lift version. It would extend the rpm range further with their greater spring pressure. www.summitracing.com/parts/sum-174002/reviews

[@gregpoirrier3895]

Looking for a good pds cam for my 6.0 (.030 over) lq4 with magnuson m112, 1 7/8” headers, 4l80 2500 stall, 3:73 gears in my C10. What would you suggest? Of course I want a decent chop!

[@SummitRacing]

Thank you for your question. SUM-8714 is an excellent cam and it’s designed to work with the LS6 beehive spring such as SUM-174002. That will definitely have chop and will do a great job in the midrange too with the converter you have selected. It is the animal that you are looking for that combination. Tire Fryer for days.

[@davidgroskopf7898]

Will the truck stage 1 high lift work with the stock vat 6.0

[@SummitRacing]

Hello David, the Stage 1 high lift SUM-8719 has .550 lift. This requires changing to a LS6 spring part number NAL-12499224, but other than that…it’s a drop in.

[@TOMVUTHEPIMP]

And it wont pass emissions

[@davidgroskopf7898]

Damage, Inc. I don’t have that problem

[@383mazda]

I can't decide between the 8702 truck cam (218/227 @.600/.600) or the 8715 ghost cam (222/233 @ .600/.575) 5.3L going in a ~3000lb car, 4l60e with a converter. Im more concerned with average hp, not peak. I don't want a cam that loses to the stock stick below 3500.

[@SummitRacing]

I believe you're referring to the SUM-8720R1 and the SUM-8715R1 cam. There are many things to consider when selecting a cam, usage, displacement, compression, vehicle weight, gearing, converter stall rating, etc. I suggest considering the SUM-8720R1 camshaft. This cam will provide enough vacuum to operate power brakes and offers a wide rpm range of power. It will require a 2500 stall speed converter. www.summitracing.com/parts/sum-8720r1 Check out the " What camshaft should I buy?" page from the Summit Help section to guide you. help.summitracing.com/app/answers/detail/a_id/4698/~/what-camshaft-should-i-buy%3F

[@383mazda]

@@SummitRacing thanks. On the Pro LS cams do they need to be installed advanced (with an adjustable gear) or is the advance ground into the cam?

[@tman8023]

Have an Ls4 5.3 any suggestions?

[@SummitRacing]

Thank you for your question. If it is still in a FWD vehicle with a stock converter, SUM-8720 is about the largest that works with a stock converter and makes really good power. If a stall converter is used, stage 2 SUM-8707 is a good choice if you are looking for a rougher idle and willing to trade a bit of low end torque for more horsepower up top.

[@DD-gi6kx]

so much talk about converter needed, what if running manual do you just gear a little lower and then need to know how to drive your car

[@terrygamble9895]

I have the 525 ls cam wonder what kind of hp I might get with 823 ls3 heads with the blue beehive Springs ly6 6.0 in a 1994 camaro ?

[@streetfighterracing1583]

Terry Gamble 450 ish crank depending on tune and headers etc etc....

[@jermeygonzales2236]

@@streetfighterracing1583 what cam n stall would u recommend for a 408, full bolt on, gears? I would love all around power but mid and especially top end is a must.

[@streetfighterracing1583]

Jermey Gonzales I made 410H/415T at the wheel with LS6 intake, stock throttle body, long tube headers, etc etc bolt ons. I’d recommend the stage 4, get a two-step tho I’m a 6-speed. BUT YOU MUST DEGREE IN THE CAM!!! Piston to valve will be good as long as you degree it in but never hurts to get checker springs. I like the stage 3 it’s very competitive with name brands but didn’t overshoot what else I had that’s why I didn’t do the 4.

[@jermeygonzales2236]

@@streetfighterracing1583 the motor is in a truck, running a built 4l60e no stall but willing to get one, port n polished L92 heads, ported truck intake, long tubes, ported Tb, 410 gears, it's made for the street scene

[@TheDiegoKidd]

Performance wise, what’s the biggest difference between the Stage 2 and the Stage 1 High Lift?

[@SummitRacing]

Thank you for your question. SUM-8719 has -10 degrees of overlap and has a noticeable chop depending on the displacement and idle rpm. It makes very good power at little to no expense in fuel efficiency. SUM-8701 or the higher lift version SUM-8720 has -1 deg. Overlap and has a mild chop. These cams move the powerband up and will make more power at the expense of some low rpm torque. These cams are about as big as we recommend with a stock converter in 5.3L applications.

[@gloriamaletta8667]

I think the less duration on the stage 1 high lift 8719 cam will be slightly better at lower rpm both these cams will work with a stock stall converter you'll need 3.73 gears in a 4 speed overdrive automatic and both of these cams you mentioned would perform even better with a 2300-2500 lockup stall converter you will feel more torque 2500rpm to 5500rpm and more horsepower 3000rpm to 6200rpm and you'll notice a big difference in acceleration from 2500-6200rpm it should pull very good in this powerband over stock but slightly lossing some low end torque below 2400rpm with a stock stall converter with a 2500 stall converter l guarantee you'll never notice the torque loss at all making it much more eager to rev up from a dead stop and a 6.0 will be more forgiving on the low end or lower rpm with the low speed torque with a stock stall converter than a 5.3 will in a 5000 pound truck or SUV

[@TheDiegoKidd]

Summit Racing I should have mentioned performance wise pertaining to a 5.3 but thanks for the response! I went with the 8719 but have yet to install it unfortunately.

[@TheDiegoKidd]

Gloria Maletta thanks for the info! I went with the 8719, to minimize low end loss if any from putting it in a 5.3. In fact, I got this cam in the hopes of getting a little more pull in the low end to help with 33s, uphill encounters and to restore some mileage if any.

[@gloriamaletta8667]

@@TheDiegoKidd let me know how well it works with 33 inch tires because I'd like to put this 8719 cam in a 2009 ppv tahoe 5.3 weighing the difference in getting a GM LS 6.0 450 crate engine is 4300 dollars the 5.3 with cam with lifers and cost with springs pushrods timing chain oil pump and redo the heads with new valves on a 5.3 and keep the 130,000 mile shortblock would be cheaper but it's not that much more for the new 6.0 of course it may take 2 more years to save for it instead of next year for a cam with upgrades on the 5.3

[@jorgepopo3273]

Can i use stage 4 ls automotive cam on my 4.8l silverado

[@joeypriest4247]

You could but you would hate it. You would lose all of your low end torque and it would be no fun to drive.

[@jorgepopo3273]

@@joeypriest4247 you right

[@samhall1231]

Will the stage4 cam work in a stock ls1 5.7

[@SummitRacing]

Thank you for your question. Yes the Stage 4 will physically fit in terms of piston to valve clearance, but you stage 2 or 3 may be the better choice for acceleration based on your gear, converter and other factors.

[@samhall1231]

Summit Racing I have 6spd car. 3:73 or 4:10 gears in the future. Also wondering what’s better for this my current ls6 intake manifold or a summit sheet metal intake manifold. Also hoping to get some porter 243/799 heads thank you for the help

[@Funkyflykiwi]

Summit Racing interested to hear your thoughts on the gentlemans reply below as im also stock 5.7 with a 6 speed and 4.1 gears in a fairly lightweight 3 series bmw.

[@alexnaramore5215]

I have a 5.3 I’m building for my Silverado and I’m considering the stage 3 SUM-8713 cam. I have 37s and 4.88 gears that give great low end torque. Would it be sufficient to run with a factory converter

[@joeypriest4247]

The 8713 would be an absolute dog in a 5.3 turning 37 inch tires. I would think 8719 at the most.

[@joshyjoshakin]

Looks similar to comp cams LSR lineup

[@DML40877]

Who cuts these cams?

[@streetfighterracing1583]

D L I got the stage 3 automotive and it shipped from Texas so that narrows it down to two companies...

[@TOMVUTHEPIMP]

@@streetfighterracing1583 Yeah, it shipped from the Summit warehouse in Texas.

[@streetfighterracing1583]

Damage, Inc. possibly, but I do live by the main warehouse where pickup was an option there, just don’t care for Atlanta traffic. 90 of my orders come for Atlanta so stuff comes direct from other companies, like valve springs every set I’ve gotten shipped from Ohio. Parts everywhere no telling but it’s a fact the Summit cams are USA cut and summit pays a company, comp or BTR... who knows might even be TSP we’ll never know the truth the secret is locked in Area 51

[@fullx4116]

Are these legal in California?

[@SummitRacing]

Not legal for sale or use in any automobile newer than 1975

[@justingeturgun]

Why are these cams not available anymore

[@SummitRacing]

They are still available: www.summitracing.com/search/product-line/summit-racing-pro-ls-camshafts

[@claytontarothomas4294]

👋

[@ronsmith7739]

The overlap is wrong, way wrong. That is valve overlap. Use .005 or .006 start duration not .050 start lift, way too much start lift. Having valve overlap at a negative value is not using the real valve overlap as it can never be a negative value.

[@MadMaxGarage]

If you’re in metro Atlanta, I tune several cars per day. Message for pricing. 🏁😎

[@jimbrown563]

Listing the overlap @ 0.05" is not very useful, in fact, it's a completely useless number. It's WAY "after the fact" at idle speeds, because of the long period of time the valves have already been cracked off their seats, and only has negative torque effects between ~1500 & ~3000 rpm, and creates zero misfire issues, like found at idle speeds. The standard for overlap measurement is almost universally around ~0.006", and is a good ~50 degrees longer than the 0.05" number. 0.006" measurements tell much more about idle quality. I'm working on selecting a cam, and I'm trying to formulate a relationship between overlap / low-lift valve flow / displacement / compression, and how this all adds up to a certain degree of Idle misfire (chop), or lack thereof. ( then you can also throw Direct Injection into the mix ) I've made plenty of mistakes in the past........ I'd like to do this right the first time. .

[@streetfighterracing1583]

Jim Brown it’s listed at 50 thousandth and that is perfectly normal because advertised doesn’t mean it’s a good grind. Only why Texas Speed Brian Tooley and Comp all give you specs at .050 lift. Sooo maybe you should fact check before you write two pages making you look like you don’t know what you’re talking about.

[@jimbrown563]

Evidently you neglected to read my entire last paragraph. The .05 duration is most definitely important from max Torque on up, but it is a moot point under low-load conditions. BTW, I was fact checking back in the early '70's, in actual books and magazines, and while I'm not a professional engine builder, I'm smarter than quite a few that I've read up on, or met. I perform miracles on a regular basis, and have for many decades, I know what I'm capable of, so your derogatory comment just makes you look arrogant. If you can't understand the plain language that I laid out, maybe you're the one who should do some "fact checking". I used the word "idle" no less than 4 times, the .006" lift is THE measurement that MUST BE KNOWN to estimate idle characteristics. Of course you could always try to argue with David Vizard, I'd like to hear that discussion, that'd be great entertainment. .

[@frfrpr]

We are trying to learn. Was the music necessary? You're trying to teach. We're trying to learn and buy. Idiot background music doesn't help either of us.

[@SummitRacing]

Thank you for your feedback.

[@kevinshasteen5682]

Negative overlap #'s??? Your overlap #'s are indirectly deceptive. Only giving the @.050 duration and not offering nor explaining Advertised Duration and the corrected overlap#'s will only confuse ppl. Granted each person needs to do their due dilligence before ordering a cam. Anyway, good luck with your cam sales

[@turbopowered68]

would stage 4 work on the 99 LQ4?

[@SummitRacing]

Yes, the Stage 4 would work with a LQ4, however some of the other Pro LS cams might be a better choice depending on Gear, converter and usage.