Cam swap questions !

[RamAirJon]

I'm putting a new cam in my stock LS1 (Lingenfelter GT2-3).

I need to know what push rods I should chnge to?

I'm also going to change the pulley. Any ideas on that as well?

Help guys !!

[Constrictor]

Are you going to have any work done to your heads? If not, then you'll want 7.450" pushrods. If you're getting your heads milled, even a little bit, stick with 7.400" rods.

As for pullies, the ASP is tried and true, but March just came out with a new one, and I still havent heard any feedback on it. You could be a guinea pig for us! :D

[RamAirJon]

I don't know about being a guinea. The heads are going to stay stock. If I get any head work done later will I be okay with 7.450" push rods?

[Blacker]

Isn't the stock length 7.400"?

[RamAirJon]

Stock is 7.400 !

[Constrictor]

Yeah, but if he goes with an aftermarket cam with a smaller base circle, he'll have to use longer pushrods...unless he has his heads milled, then that would offset the smaller base circle, thus necessitating stock length pushrods.

[Blacker]

How big of deal would it be to use 7.400" Pushrods with a smaller base circle cam? Not sure of Thunder's base circles on their cams, but they recommend 7.400".

[bRa_DeN]

i went with chromemoly pushrods with my tr224:D stock length

[jrp]

exact stock PR length is 7.38 but thunder recommends and sells the 7.400 PR's. thats what im using right now :).

my understand is:

7.400 with unmilled heads
7.350 with milled heads up to .030 (:think: )