L76 cam

[Harris]

Here is a link for a cam i want to put in my VZ SS 06. Would anyone be able to tell me for sure that it has everything i need for a L76 engine? (Precision International - Part Details). It needs to be suited for boost. (Is high lift good for that?), Is it true the l76 has L92 heads? Does it have a 3 bolt cam? Also has anyone got a video of a car with a cam like this one??

[SirNemesis]

L76, L98, L92 and LS3 are all identical head castings. I assume you tried to link the cam you mentioned on the other page. If so, I wouldn't run a cam with that much lift in a boosted application, just makes life harder for the valvesprings.

Yes, L76's have a standard 3-bolt cam gear.

What kind of boost are you talking about? The duration on that cam would be better suited to a blower, but I still think its too big to be enjoyable. Might be alright for a dyno queen though.

[Harris]

Precision International - Part Details Hope that link works. I want to use a harrop supercharger or a whipple would be most likley. I orderd the valve spring kit the cam said to use so hope it all works out good. Do you think it will have a nice idle?

[SirNemesis]

It'd be lumpy, and it would almost definately require piston flycuts.

[Harris]

are u sure i would need to flycut the pistons?

[SirNemesis]

247 duration on the exhaust with 112LSA? Almost definately.

[Harris]

Changed to this cam hopefully still have a good idle and work with top mount later. Hopefully crack 420rwhp

Suits LS1 & early LS2 with L92 heads
Hydraulic roller (RPM range 2200-6800)
Duration at .050¨ 227°/238° valve lift .583¨/600¨

[SirNemesis]

Changed to this cam hopefully still have a good idle and work with top mount later. Hopefully crack 420rwhp

Suits LS1 & early LS2 with L92 heads
Hydraulic roller (RPM range 2200-6800)
Duration at .050¨ 227°/238° valve lift .583¨/600¨

Depends how happy the dyno is, but in a manual that should generally do around 420rwhp without boost.

[jakstas]

You would do well to listen to this man. He knows his stuff. Except for his taste in signatures :P

[Harris]

When i swaped cams to the smaller one i couldnt swap the vavle springs. Is that goin to be a problem? The spring i was ment to get wit the new choice of cam is 520lb and the first one is 550lbs. Will this make anymore problems

[Munz]

no it shouldn't, thats just how much the spring can handle, the spring rate would be higher with the first cam due to the size and obviously the harsher lobes (maybe).