5.0L FORD HEAD TEST-E7TE vs THE WORLD (pt 1)

GT40P, GT40, AFR, BRODIX, EDELBROCK, HOLLEY, WORLD, CANFIELD-FULL RESULTS, AIRFLOW DATA, POWER DATA, CHAMBER VOLUMES, PORT VOLUMES, VALVE SIZES, VALE WEIGHT & SPRING RATES! ALL THE DATA YOU WANT TO CORRELATE IT TO THE CHANGE IN POWER. HOW MUCH ARE HEADS WORTH ON A PERFORMANCE 306 FORD? IT'S ALL HERE!

[@joenobody2580]

I still run AFR to this day because of your research. AFR shoulda gave you a commission check !! Lol

[@I_like_turtles_67]

They make one of the best all around inline head for domestic V8 engines. If you require canted heads. There's a ton of excellent choices too.

[@johndoe-zb8bm]

Thank you Richard, I know a bunch of us Ford guys appreciate everything you do for us. Awesome information ,now all we have to do is pick a combo!

[@leemarcum7891]

@Grey Roger ¹

[@EricErnst]

A buddy was just telling me he wants to upgrade the top end in his 93 mustang. I told him your channel has everything he could possibly want or need to select a great combination of parts. Keep up the good work.

[@richardholdener1727]

Right on!

[@svarpallstefansson3782]

Small block Ford head testing? Im here for it!

[@naphi6769]

Think you might want to use Excel to produce a table that's a little easier to read😅

[@Big-Lex124]

And here I am, many years later, playing with my 351w and all this info (parts 1-4) is helping me out big time. Thanks so much for this data.

[@ThemHallBoys]

Richard I'm 100% a CHEVY guy but I totally have to appreciate how awesome your work is. I mean talk about going above and beyond. Best "auto" channel on KZbin hands down. Your dedication to the job is amazing.

[@richardholdener1727]

Wow, thanks!

[@sonicshima1663]

Wow this is awesome! I can't get enough of this channel! Thank you Richard!

[@jamesperry1944]

This video is amazing. Thank you so much for the level of rigor you put in documenting everything.

[@lochnessfox3441]

Love everything you do with ford small blocks. Stay safe and have a great holiday season!

[@svt_dvl8196]

Our Foxbody my Dad built has 205cc AFR Fully ported and polished heads, the sound and power that it gives on the 5.0 is just Amazing!

[@earlberry8873]

i for one appreciate this i remember when you did this i think i still have the magazine or series that you did

[@Go4BrokeOffroad]

Ive been digging through my old magazines. love seeing the info come back sir. i remember being 16-17 years old and digging through pick n pull windsor yard looking for a ford explorer engine. i ended up swapping in the trick flow stage 2 cam (.554 lift) as your recommendation from an article. funs times.

[@Dave_Boyer]

Awesome video! Just what I’ve been waiting for.

[@Mark-Willis]

Excellent video Richard. Keep it up man!

[@cammer68oliver2]

Another good one, Richard! Good job! Go AFR, go! Yeah! I love my 185s on my 347! She runs! Keep em coming, bro!

[@Lifeistooshort67]

Thank you, thank you, thank you!!! You're the man! Best channel on KZbin.

[@sqr2024]

You do tremendous work and wish their was this much engine build detail back in the day.

[@rustybritches6747]

Thanks again for ALL you do!

[@topmodstv3682]

This is the video I’ve waited for all my life

[@mikeymac9]

Excellent! Loved this back in the day. Looking forward to the series. I still run the old school GT40-Y’s lol

[@Boostedjasper]

Awesome! Old fuelie cylinder head shootout 👊 Thanks for this series richard, you’re a legend Bro!

[@shitbox7413]

This is cool, I dig the 5.0/Windsor stuff. 👍🏻

[@davidportillo2463e6]

Thank you very much for your time and dedication to this subject , very very useful information you put out to us . GOD BLESS YOU.

[@marksearcy9708]

Awesome, I appreciate all your effort . It is a great help for anyone interested in building the 302😁👍

[@ts302]

You ROCK Mr. Holdener!!!! Thank you and can't wait for the rest of this series! BTW-21 degs this morning north of the border

[@richardholdener1727]

that's less than 71! Actually I'm Norwegian and lived in Tahoe for a while-the cold is not a problem-people just give the Cali people a hard time.

[@geomod6850]

Thank you for the hard work and data!

[@redsmerf]

What I like about your videos is that you show the HP and torque curves and compare them. A lot of other youtubers doing this only give peak power, but I want to know how it's going to act down low as well.

[@Ed70Nova427]

Thank You Richard! Great data again!!!

[@jlem8968]

another great 5.0 video, thanks and keep them coming

[@tiagonestiago]

Another amazing vídeo, thanks a lot sir!!! 👏👏👏

[@Sikulz]

Thanks Richard, nice work and excellent presentation 👍 wish I could hit like more than once.

[@jimmiller4667]

Another great one Richard, thanks.

[@mitchoconnell6944]

Incredible amount of work and your time thank you

[@richardholdener1727]

My pleasure!

[@mikev.7361]

Wow that's impressive! I could just hope that my 306 combination can be on the top of that chart. Great info and thanks for sharing with us Richard!

[@richardholdener1727]

You bet!

[@JonDoe-bg8ht]

I would love to see the same heads and same cam setups on the 351w short block just to compare how much you would actually gain with a "short block swap" I feel like a lot of guys would benefit from the knowledge of how much exactly you gain on the change in cubic inches alone all over the graph

[@19jody72]

Good idea!

[@302hobronco]

I would like to see this to!!!

[@cesar101387]

I agree I would like to know the exact hp and Rpm difference vs the 351w

[@95GTSpeedDemon]

Bascially, more power earlier, higher peak, and then the power would start dropping more a little sooner, if the 302 based engine couldnt work the head hard enough to show "choke."

[@edjackson4389]

I can tell you very accurate guess. You could count on around 450-460 ft/lbs and 415-425hp if a 351W short block with the same compression and camshaft were used. Hp would peak around 5500rpm

[@motorosso3349]

I appreciate the milder version of the 5.0 as it represents a good combination for street driving with an automatic transmission.

[@PureCountryof91]

Explorers came with the gt40 and the gt40p heads...

[@richardholdener1727]

yes

[@DoesItTho]

@@PureCountryof91 and the nice and stout 8.8 coupled to the durable 4R70W

[@DoesItTho]

@Jackson P. Storm haha so true, almost lost it just typing that considering how much cash I dumped into mine to make it “durable” against anything other than “short term lease soccer mom throttle”

[@DoesItTho]

@@PureCountryof91 yup! best late model iron heads ford ever intentionally produced and factory equipped for the Windsor 5.0

[@paulmazzara5030]

Keep it coming, love it

[@wynettepatton6650]

Best SBF cylinder head Dyno comparison on KZbin!

[@mustang91]

Thanks for the sbf content definitely need more ford videos

[@dennistate9951]

One of my favorite videos

[@roknroy1]

thank you so much for your time! rich

[@CJ5EVOLUTION]

I have a lot of episodes to catch up once I reach home after 4 months of working overseas

[@tttony9426]

Just can't get enough of sbf tests

[@blasterracer817]

Perfect timing. Building myself a spare 305 at work with leftover parts. Got the block whole engine 50 bucks hydraulic roller block. Shooting for 400hp

[@hotrodray6802]

Easy with carb. Use the Joe Sherman tricks.

[@indyrock8148]

Regarding your question on spring pressure on HR cams. I came to the conclusion too much was better than too little. Less wear and chance of lifter failure from float was my conclusion. More power because no valve float. I went with a 450 lb/in rate spring. Its fine.

[@steveamnmn]

Two ways to look at the valve float issues with these heads: One is that they all provide insufficient valve spring pressure. Another is that the Comp XE series of cams push the boundaries of ramp velocity for street cams, requiring higher spring rates than most. All of these heads would work okay with a lot of aftermarket cams, including some of Comp's less-aggressive profiles. Choosing ramp velocities will always be a balancing act between increasing performance versus increased wear, noise, and valvetrain upgrade requirements. These days most folks are opting towards the higher ramp rates; as Richard suggested, head manufacturers mostly have followed the trend by increasing their spring rates. The takeaway is to match your springs to your cam maker's recommendation rather than settling for significantly lighter (or heavier) springs that happen to come on your heads. Economically, most of these heads can be purchased bare if a spring change will be required.

[@jimrutin]

It would good to know the flow from professionally ported factory heads. But hey, thank you Richard for your very considerable effort which produced a lot of good information!

[@dennisrobinson8008]

David Vizard has a KZbin where he said he did 2.02 and 1 6 valves in a e7te head with extensive port work and got 280cfm. It was him saying it. I don't think you can count on getting that number but many ported e7 heads are around 220 to 230 cfm or around some cleaned up gt40 iron heads.

[@JC-gw3yo]

Richard you are awesome... We Ford guys thank you

[@besearchingforwisdom6267]

Another great video

[@ericdebisz9458]

Ed Curtis Flow Tech Induction. Early 2000s I bought a custom cam and AFR 165s with PAC valve spring upgrade. Ran that on a dss 306. With the right setup Ed could get your fox with a 306 doing 11.50s. perfect street car application. Just knocking on the door of having to put a cage in the car

[@zachutson7205]

What intake manifold did you run. That's exactly the set up I been saving for. Just undecided on the intake manifold

[@ericdebisz9458]

@@zachutson7205 I started with a typhoon intake like an Edelbrock knock off. at that time I was running Mac equal length shorties. If I only knew then what I know now. Those pieces on the 306 with 165 afr's 4.10 gear was 12.2s for 3100lb LX. The stuff that put me over the 12.0 edge was Holley Systemax. inlet was hogged out to 80mm to except 80mm tb. Custom made a intake tube, 4" that resembled a anderson power pipe. BBK 1 3/4" long tubes. That right off the trailer was 11.80s. More fine tuning and I went from 4.10 to Richmond 4.30s. Retarded cam timing 2.degrees to push out peak power in rpm range. Off the trailer again skipped the .70s and ran 11.60s. That was 2015. Still have all the stuff to put it back together someday

[@zachutson7205]

@@ericdebisz9458 wow that's bad ass. That's about the perfect street car in my opinion. No roll cage and still able to kill about anything on the street. I may not get in the 60s with mine. Being it has 3:73s 31 spline. But if I can get in the 11s I'll be stoked

[@ericdebisz9458]

@@zachutson7205 running n/a you got to jump in the 4. Something gears 4.10 4.30 4.56. depending on your combo. To get the little 306 to boggy.you know. I ran a g force t5 with reduced overdrive gear, .59 I think. In 5th at 70mph it was similar rpm as if I had 3.55s and a 26" tire

[@falconater68]

Thanks. I have a few pairs or gt40s for my 351s. Kicking around Skip White though.

[@scottsummers8167]

Those afr heads are impress, I have edelbrock performer on my 347, looking at 11r for my next build

[@mavsformulaful]

The valvetrain weight was a brilliant idea

[@donaldcoalson4347]

Ps. Appreciate all your work!

[@davidsimms2806]

Awesome information thank you

[@TheRealBootyWarrior]

I appreciate you man

[@jseaton7992]

Thank you Richard. Isn't this the same test as MM&FF magazine did years ago ? I still have all the magazine's. Nice to see it in video form now.

[@madmod]

My Lord you just kill it with specs.

[@arkhsm]

Richard, you're going to love to hear this ... I hope ! I live in NZ, and have a 2001 Ford Falcon AU XR8 5.0 litre, 220kw(295hp). This engine came from the factory with Gt40p cylinder heads that were ported slightly to match the power of the GT40 Aluminium head, that went previously into the more expensive Tickord Version, Falcon. These engines were built at Tickford by 20 engine builders @ a rate of 20 per day. Other fantastic features were the --- factory fitted roller rockers, proper headers, 70mm throttle body, massaged upper and lower intake manifold, hot tested. Then, my Synergy V8 received a hand-engraved " Hand Built with Pride by.... J Neves (the guy that assembled it). MInes nearing 200,000 miles. I hereby declare this THE MOST POWERFULL straight off the production line 302/5.0 Ford pushrod V8 EVER ... Hope you enjoyed the read !!

[@richardholdener1727]

WHAT CAM

[@arkhsm]

@@richardholdener1727 Sorry it took sooo long to reply. It's unreal mild......268/275 adv. , 203/209@.50 .455/.455 lift, on a 118 lsa . It took ages to find that one line in a month of searches !! p.s , love your work and enthusiasm 😃; these heads should make 50hp on that dyno 306 you tested !!

[@krislinder7460]

the GT40P heads are actually factory production heads, they came on the '97-2001 5.0L Explorer and Mountaineer

[@DanEBoyd]

They're a good improvement over te E7TE heads.

[@thetriode]

What this test affirms in my mind is why people would take a stock engine 5.0 Mustang in the early 00s and supercharge it to make power. That 264HR really is a great cam for how mild it is looking at the numbers.

[@TurboRanger351]

I remember waiting for the next months magazine to hit the racks so I could buy it. This cylinder head tests series was the most informative things I remembered from any magazine back in the early 90s. I honestly didn't even know you were the one behind it. Thanks for all the time and effort you put into doing all the test and research. Just wondering, do they still call the dyno master himself " LL BRUEL J"

[@richardholdener1727]

we do

[@TurboRanger351]

@@richardholdener1727 glad you've stuck with it so long, you don't know how many people you have helped with all your work . Thanks a lot.

[@LukeSportsman]

Older stuff of YOURS, but still a good watch and a nice relief from all the political talk. And I mean nothing bad in that as your info from then, is still just as real now. Over time you almost forget where we came from on heads. I still have my Windsor Sr from SuperShops in the garage. At the time, IF you couldn't step up to some highports it was about as good as it got for 1990. When 250cfm was great and 6500rpm of hyd roller was dreamy. Can you imagine telling some guy in 1990 that we'd be doing nearly 8000rpm with hyd rollers LOL. Esp the poor Chevy guys...... rem the helper springs on top of the lifters? Keep it coming, Richard!

[@richardholdener1727]

REV KITS

[@floydmarseeii4007]

Very cool 😎!!! I’m looking at one of these sets of heads for a F4TE 351w .

[@brybrycrivello]

I had a set of GT40 aluminum with the smaller combustion chambers with a Motorsport B cam. Car ran excellent. It was just a nice combo. Not the fastest but it did very well. Also holly systemax intake with 24lb injectors.

[@johndoe-zb8bm]

Definitely a proven combination on the streets back in the day!

[@vtecbanger3180]

Anyone know what whp would be on that set up?

[@Aheitchoo]

Man I know it was tough but I appreciate it. I feel like I owe you money at this point

[@richardholdener1727]

thnx-it was a ton of work-but good data is valuable forever

[@chrisbali5246]

Good job.Thanks for being thorough.

[@charlesvan13]

One option is to bolt on Cleveland heads. You just need to drill a water passage going to the intake. It might be difficult getting an intake. A Boss 302 is just a Windsor 302 with 4V Cleveland heads.

[@jesse75]

You still have to plug the square water ports in the heads that flow from the Cleveland block.

[@stephenhotzjustdriveit]

I have a set of the GT 40P's a set of J302 heads as well. Always wanted either the Canfields or the AFR's but never enough $

[@nedaCFilms]

Love to see a E5TE vs E6TE vs E7TE shootout!!!!!!

[@JR-Rollin]

Your videos are awesome and so informative. Makes me think of going through all the magazines back in the day before we had youtube to find the best combos. With this video I was kinda surprised you didn't have a set of trickflows....I have the trickflow trackheat 170 heads which were the most common used by renegade class back in the day along with the AFRs. I know there are tons of different heads but would have loved to have seen a set of trickflow in the mix. Anyhow, keep up the great videos. 👍 Just saw the other video you posted with twisted wedge. Nice to see, great data.

[@richardholdener1727]

check out part 2 of the head test-the tfs heads are there

[@JR-Rollin]

@@richardholdener1727 yeah thx, I updated my reply after watching video 2...lol Also, since I'm sure you have tested both, how do the trackheat 170s compare to the twisted wedge, I think mine are 61cc , can't remember it's been so long since I put them on...haha

[@richardholdener1727]

not sure on those exact heads

[@JR-Rollin]

@@richardholdener1727 oh, ok. Might want to check them out sometime if you ever address 302 heads, they were the most winning head type in nmra for I believe the renegade class. Even lists its history on Summit when you look them up. I just happened to be told about them at one of the many NMRA races at Bradenton I went to and after researching in magazines I found they and the AFR were the two top heads then. Anyhow, might want to check them out sometime. Thanks for your videos, makes life easier when considering different combinations.

[@kevenshores804]

Thanks.. I have been waiting patiently..lol

[@tomcelica]

21:15 After you put me under your spell, I went and bought another project car. What is this madness!!!!

[@raybowen8516]

When are you going to do anything about the V10 Ford I would like to see some videos and there's probably a few other people that would like to see some videos on them too

[@donellmuniz590]

Wow, the AFRs were the CLEAR winner, with the Edelbrock, Canfield, Brodix, and Holley all vying for 2nd.

[@richardholdener1727]

best flowing small bore? the TW is in the next group

[@josebonet1396]

Love what’s being done here lots of ideas. Would love you to do some straight sixes ie. Ford 300, chevy 290, dodge slanted etc. I’m a Ford guy and I have a few 300 L6 engines and would love to see what their potential is, and how they compare relative to each manufacturer. I’m certain that there’s a “small“ crowd of straight six fans out there that would love to see the same. Love the channel!Thanks.

[@richardholdener1727]

I have the 292 Chevy tests-doing more-then a 300 Ford and 4200 Chevy

[@josebonet1396]

@@richardholdener1727 awesome can’t wait to see it!!!

[@josebonet1396]

@@richardholdener1727 I have a 84 Ford 300 industrial in my engine stand that I want to build and a 84 in a shed that needs to be built also, just in case you need one to monster build 💪🏻👍🏻🙏🏼

[@brianbenson5769]

HI, RICH.... Ever consider using a 2V cleveland head setup.? I say this asa good friend, Donnie S. did such a conversion... The biggest hurdle was (30 yrs. Ago) finding an ibmntake soecific. The result was a rynnin little SBF. PMoeak ho was (with a set of O'briens truckers headers) avout 420. Hust a thought.... God bless. BRIAN.

[@totensiebush]

All of your data would be far easier to read in a spreadsheet than a text file like you have it. I've got plenty of extra time on my hands right now and would be happy to help compile it as such for future videos, even into a Google Sheets file that you could link in the description so that people could open rather than having to pause the video and transcribe.

[@zv4997]

Yah I was thinking the same thing. Excel would have made this easier to read

[@bugsoli]

Finally! You are awesome Richard ;-)

[@bugsoli]

By the way, is the GT40 tri-bar better than the GT40P? I have a set on the shelf that will be installed in the next few months ✌🏼

[@richardholdener1727]

gt40 iron and gt40 p were very similar

[@DoesItTho]

The Ps get ya a little more compression and some say a touch better mileage. 40s are easier all the way around in terms of headers and compatibility with the original 93-95 Cobra intake. But performance wise it may be a coin flip

[@bugsoli]

@@DoesItTho Yes, I already have the GT40 upper and lower installed, the lower is one modified by TMoss

[@johnparrish9215]

They had an episode of Engine Masters were they took a big 408 stroker and ran it with the little 165 AFR heads (they were starting there and comparing head sizes up to 220cc). The damn thing made 470 hp and 510 torque!!! As far as I was concerned that was the perfect combo for the street.

[@xmo552]

On the 165s?

[@johnparrish9215]

@@xmo552 Yep, probably the best general purpose Small Block engine I've seen. You could put it in anything and be happy.

[@Bacongrease00]

AFR165 heads despite being the smaller option tend to flow very good for their size at reasonable lifts. The unsung hero

[@mikelittle9583]

Now I want to pull my aluminum gt40 for some afrs and a 274 cam of course.

[@tclark248]

I own a mustang and yes these combos appeal to me greatly and Thank you for taking the time. My mustang is a twisty car. I want to build a vehicle for drag racing and that is my 05 Nissan Frontier. (It’s paid for). I also have seen a large following in the Nissan. VK series motor for drag racing. Really strong crank and block. I could use an LS and just be done with it but this VK56 is cheap, Titans and suvs have them. They are prevalent. Can you consider taking a look at it? You’ve done Honda’s and I think there’s a group that might open up to you. Big Thanks

[@kennethpowers8995]

Just saying, there is absolutely no way you could build the VK to rival power of an LS for cheaper as you say lol. Have you not seen the simple heads/cam LS motors that make well over 1000-1200 HP? That DOHC Nissan motor will take thousands of dollars more to be competitive in power production. Yes it is a capable engine, but there is a reason you see 100 LS builds at the drag strip for every 1 5.6 Nissan you might see running down the 1320 (or 660).

[@Lukeamyster]

Love these videos, you da man! Have you ran any tests with Holley Sniper EFI on 4150 flange intake manifolds?

[@richardholdener1727]

Not yet!

[@tahcogunworks]

Nice job.

[@302hobronco]

Thank you thank you. I've always wondered what a set of gt40 heads were like compared to aftermarket. Would be neat to see what the iron gt40 heads would do on the same set up but with some porting and higher compression.

[@johndoe-zb8bm]

They will out flow them when ported properly!💯

[@michaelmayer8618]

Shouldn't b much different from the gt40p heads

[@dennisrobinson8008]

Gt40 untouched are 185 to 190 cfm. Most of the ported numbers i remember are 220 to 240cfm.

[@Joesmusclecargarage]

I’m running AFR 185s on my 89 LX. I don’t have any complaints.

[@smithperformanceracing5848]

Got GT40 Ps on my Stang. Real Cobra intake, cobra computer, 24 lb injector's. It's out ran stang's with aluminum head's. It runs good for what it is

[@DoesItTho]

Amen! A good machine refresh and valve job, aftermarket springs if bigger cam, and real mild porting on the exhaust side to bring down that “knee” ridge... f’ers run real hard. And that iron will never let you down

[@xmo552]

What's the set up

[@smithperformanceracing5848]

@@xmo552 Has a C5 Automatic Trans, rebuild to a Super duty C4. 5000 stall converter, 410 gears, South side machine bar's, adjustable upper control arms. Competion adjustable shocks, 90/10 stuts on front. 50- 300 shot of NOS.

[@xmo552]

300 giggle juice horsies 💪😁

[@TheFarCobra]

With the popularity of ported factory LS heads these days, it would be interesting to see a set of CNC’d set of the aluminum factory Ford heads compared.

[@richardholdener1727]

Ford never offered alum factory heads on the 5.0L

[@fordmanx3]

Do a mopar small block next please i wanna see all the aftermarket heads available please 🙏

[@deanstevenson6527]

USA aftermarket heads are so good. But CNC machined GT49Ps are 215 to 22

[@nedaCFilms]

It’s all about “data” ❤❤❤

[@fixerson-9089]

You should make a video getting the 302 to make max torque , lots of us guys with old 80s and 90s trucks and vans need more torque. Everyone always just says swap to 351.

[@russelljackson7034]

Right on

[@kylapendley924]

PLEASE do a low budget head test. Ebay heads like NKB against flotek heads against basically everything under 1k/set and let's see what an average joe could do with a freshened shortblock and a good cam. All of these heads in this test minus the GT40s and the E7s are expensive as hell.

[@richardholdener1727]

this was done 10-15 years ago

[@kylapendley924]

A lot of the head designs have been tweaked over the years as well as cam selection increase. I am talking about throwing a bunch of the NEW Ebay heads, Floteks (they have a new CNC version as well) and other heads that all are below 1k dollars/set (NKB and others) that are having a large impact on the scene where guys will go grab a short block out of a wrecking yard and throw H/C/I on it, maybe a little nitrous, and have some fun with it. The 7 heads that work test was also done on a lot of the harder to find heads that have gone up substantially in price Cite: World/RHS as well as were under 1200 not the 1K mark where you will find A LOT of these at. ALSO that test was not done on a wrecking yard engine but a DART block I believe and is NOWHERE near the same thing esp with pistons.

[@ghosttheoremproductions5469]

I'd love to see a budget 302 setup --- Home ported GT40P heads, Explorer intake mani (if EFI), budget cam, 1.6:1 rockers, better valve springs, and some mid range headers (as exhaust flow for a 302 is rough).

[@richardholdener1727]

what is a budget cam?

[@ghosttheoremproductions5469]

@@richardholdener1727 I mean a low buck option that doesn't require additional changes. Hydro flat tappet from Speedway? They have a mild 219/233 that works with the 1.6:1s if I remember right

[@dnatuner1984]

Would love to see a Dyno of a set of Quantico SBF heads on a 302,

[@a2cryss]

15:19 I once upgraded to higher ratio roller rockers and stronger springs and was rewarded with lifter noise after a few thousand miles. So that is one downside to stronger (but still somewhat mild) springs.

[@richardholdener1727]

I have not found that to be accurate with the SBF

[@mattipps]

Sounds like you didn't do it correctly.

[@enriquetrevino7815]

Awesome video man, just missing a trick flow head

[@richardholdener1727]

see part 2

[@edsmachine93]

Great content Richard. You really did alot of work. What would have all of these heads did on a 351W? Cubic in. HP &TQ

[@richardholdener1727]

made more

[@danfriesen4417]

Those afr heads are pretty wicked. I need those. 90 hp gain ???