Sir , any idea for motorcycle engine ??

I have been running 40th to coil bind , been ok for a while now , after watching this I am a little worried, my thought was , closer to coil bind may help against valve spring vibration etc , I wonder if anyone else has done this ?

This is what valvtrain stability looks like

Didn’t think the spring turns in the housing

Tough crowd in here.

Looks good!

Ive built many heads and race engines..the "right"spring is what ya gotta have.no body wants to loose a valve in their pride n joy motor due to springs or wrong springs.dropped valves busted pistons cracked blocks ive seen it all.

Good info thanks

How about a episode on measuring installed height DOHC direct acting (bucket tappets) applications.

Will the PAC 1219 beehive spring be safe to run with an LS3 BTR stage 2 cam? .620/.605 lift

Does PAC fabricade beehive Import springs for 16V 4 Cyl engines Rev 9500rpm for circuit racing NA engine or only for V8 engines?

Hey, what about us LT1 GV Silverado guys? Where dem heads cuz! Looks like people holding out on us.

Just got your 1218 for my 03 z06. Sure hope 1 doesnt break

can this tool be used for small engines?

👍👍

9:50 "Everybody knows about flat tappets..." What's your theory for the current epidemic of flat tappets & cams? Oil? Zinc? Soft metal? Chinese parts? Bad lifter crown machining? Aliens?

My cam is . 540-.560. I'm looking at 1218 & 1219 springs. I like the higher seat pressure of the 1219, but would I be better off with the 1218 shimmed tighter than the 1.8 installed height PAC recommends to get closer to coil bind for more pressure on both the seat and over the nose? How do you use the spring rate to figure spring load at a specific lift?

I can't make purchase on site?

I really dig this guys straight forward though guy delivery, I really do! It was straight forward and to the point and tons of energy! He hit on a lot of points very quickly and was very memorable. My only notation is that he said HEIGTH several times....it is HEIGHT!!!!! But I have OCD....so there is that. PAC is my go to for every engine build!!

Do all vp's rotate??

amazing how fast they rotate too...

It sounds like Boeing 737 jet engine takeoff. Actual hearing of 5000 RPM.

After reading All of the comments some of you guys are like little girls looking at what tampons or pads to buy ... put a panty shield in your underwear if your pussy hurts

I need some valve spring that will work in a stock ls1 head with ls6 cam . I need a dual valve spring set up for some peace of mind when a spring breaks . Do you have some ? I ask a few shop and they’re more interested in selling me junk that doesn’t work .

Definition of the terminology used would help a great deal. Otherwise, all the info anyone could need.

Can I run a cam lift of 0.660 when max lift of my spring is 0.660. Or do I need a little safe space like 0.657 lift. Thanks appreciate. Regards S Erasmus

Blah blah blah blah blah ...

It would be extremely helpful if you zoomed in more

Hello

Hi I have ford edelbrock victor jr and I need springs kit for it

Real practical information!

Worked at Peterson Spring Southfield plant, made thousands of these springs many years ago, now live in Charlotte NC, was kind of surprised to see a video about them on KZbin, is that a Larson your using there because that's what it looks like

What if your valve spring pressure is to weak

Woow

American junk.

Good information

Two days ago, I ordered some PAC 'Hot Rod' SBC springs from Jeg's. It was a pretty easy choice for my application, because no one else seemed to offer what I needed. I'm putting 1.6 roller rockers in an L98, which is a low-RPM engine, and I could probably get away with using fresh stock springs. But I think Chevy probably specs the stock springs as light as possible for fuel economy, so I wanted uprated springs for some valve train durability and stability head room. Shopping primarily Summit and Jeg's, I found nothing comparable from the usual sources like Comp, Edelbrock, or whatever. Maybe I just missed them somehow, but I looked pretty hard and long. Though I'd never heard of PAC (I'm new to the SBC world), I went ahead and ordered their Hot Rod springs. After watching this video, I'm confident in that choice.

this is one of the best videos on what is needed to install the right valve springs and the right way

Best Ive ever heard 👍👍😎

What about off road guys ?😁

Can you tell me for quads?

Is HEIGHTH a word? It is just height right?

I had to subscribe the scupsctibers were at 666

I've watched this video probably 20 times highly informational

What do u suggest for a stock 2015 GMC Yukon to up grade on sprigs ?

Very passive aggressive. Relax a little my man.

I’m looking to change springs & rockers on my 94 Chevy impala SS. Stock cam & looking to install beehive comps with 1.6 RR. Im very curious & as a mechanic Iv only done this in school. My lt-1 would like a change. 105,000 miles on her & I plan on doing it under the hood. I can’t find any videos showing you on how to do it with the engine under the hood. That tool looks like it would make life easier instead of the one I have. This video is very informative & I just subscribed 💯🏴‍☠️🇺🇸

That was short, sweet, and to the point. Not to mention, very informative. The best compliment I can pay you is to subscribe. I don't need to turn the high rpms for index racing and the limited lift of my heads (.600"), but I since it is a street\strip car, getting more hp with more rpm has a certain primal appeal. No wonder Trick Flow chose your springs in the GenX 225 "as cast" 13.5 degree heads for SBCs.

Boing!

He’s pissed it was his turn to make the video.....lol