dmc454

Had a chance to help build one of the NASCAR LS2 motors.Great experiance for when I do my motor.Learned alot about these motors.Not as hard as I thought it would be.The more I learn about engine building the more I figure I need to learn.Enjoy

Greg Fell

iTrader: (9)

Nice! What sort of heads do those use??

dmc454

They were a set of CNC 243 heads.Dont know much else about them.Part of the motor kit this belonged to.I had a chance to help dyno one of these a couple months ago.It made 592 HP.The whole motor is from WEGNER Racing Engines and its a piece of art.

Steve Bryant

iTrader: (1)

Thanks for sharing these photos and your comments.

Steve

The Alchemist

iTrader: (19)

What clutch is that? Looks pretty light.

Stang's Bane

iTrader: (22)

WOW, 592 hp on a hydraulic roller. I am assuming stock cubish???

ss1

iTrader: (32)

Looks like a Quartermaster Optimum-V 7-1/4" triple disc. Nice stuff!!!

AU N EGL

NASCAR LS2 motor???

592 hp on PP243 heads dayum


Very very cool

so what size of cam ?? and other good details??

What teams will use these?

Schwanke Engines

iTrader: (1)

We have a couple of customers that race against these engines at Slinger Speedway in WI.

dmc454

Quartermaster clutch kit.And I think its a off the shelf Comp Cam.a 281 roller.It can spin to 8000 rpm on upshifts on restarts but can run all day at 7000 rpm.They told me power is in the head flow and they are not saying anything about that,I tried.

SS Enforcer

Interesting to note there not running roller tip rockers for this motor. Are they running a controlled rocker or is it a left up to the builder to select what they want ?

cheers

dmc454

You can only run what they send you in the kit,or you can lease a built motor.Everything has a coded square on every piece.The most you can do is tune on the carb and timing.Its for an even playing field.

Schwanke Engines

iTrader: (1)

I think the conversation of dual vs. single all depends on your valvetrain dynamics. Why, if your valvetrain is 100% in control, no valve bunce, would you even consider dual springs?

I think the reason a lot of shops use the dual valve spring setup is because that is what they have used since they started building engines. It has been proven over and over that if you can keep your valvetrain light, you only need to control it with a beehive valve spring.

And, vs. a standard dual spring setup, a beehive will out live a dual and be less harsh on the rest of the valvetrain components.

Nine Ball

iTrader: (38)

Guys, please keep this thread on topic. Enough of the valvespring arguments. Just take the photos for what they are. I, for one, am happy this gentlemen snapped pics and came here to share them.

kerryt1

iTrader: (10)

Cool pictures. What intake / fuel system do they run with these?

01ss#5536

iTrader: (1)

Are you attending NASCAR tech?
I graduated from there August 2003.

Quick 99

Sweet! Hope everything is going/went well.





(Booo nascar: Yaay F1)

pist0lpete

iTrader: (3)

What class in nascar do they use these engines in?

512bbi

The heads look CNC cut but no hand porting?

See5

iTrader: (53)

Wegner ports the heads. They get the hp at high rpms with a carb intake and a GA like cam which is not terribly streetable.(why should it be) Light single springs (PSI) and valves.