1991ls13

iTrader: (1)

also with the last post, is a .60x lift ok for a 383 with prc ls6 stg 2 heads? And a high lsa, 114+2 or 115+3?
I`ve narrowed it down to custom cam 236-240, 238-242 or a MS3(237-242 and all with a 114+ lsa for a smoother idle.
I want it to drive stockish, doesnt have to sound or be Stock, but stockish as in no bucking.

Edit, looks like i got some advice from a very smart repectable man and i finally figured out how to compare cams etc.
238-242 .60X .6XX 114+2 - 115+2.

Please if anyone has input about this(not worth switching, how it would act, power under curve etc) Although im pretty set on it as of now, doesnt hurt since i have till the the middle to end of summer to decide after i see how my tv2 does.

1991ls13

iTrader: (1)

wow thats a sad number, 430? ew. Hope that it was something like a mistake.

Many 346 h/c have done and passed that....

dlross

iTrader: (3)

i have a 383 with dart pro 1 heads texas giant cam fast 90/90 set up and put down 441rwhp threw a 3000 stall.

1991ls13

iTrader: (1)

more with the cam im asking about? or something similar?

s346k

iTrader: (4)

his cam and header choice are really holding that engine back. 1 5/8" block huggers on a motor that big is prob worth 20whp through a stalled auto, esp given that intake/head combo. i am not a magic stick fan so ya the cam sucks hahaha .

1991ls13

iTrader: (1)

^ lol, could you explain why?

want297z

iTrader: (7)

I have a very similar set up in my 2000. It is an A4 (3600 stall) thru the 10 bolt, PRC stg 2.5 heads, 238-242 custom cam (lift in the 6xx range on a 112), LS6 intake, stock throttle body, mac mid headers and y (very small and need to change out). It made 450/440, drivability is fine by me (no bucking and minimal cam surge, but it is an A4 so that helps), and runs 11.2-11.5 @ 118-120 depending on how the track is prepped (minimal suspension mods done).

1991ls13

iTrader: (1)

^ replies like this is very helpful

thank you want297z

382ssz28

iTrader: (24)

I've been following your thread, 1991ls13. I had the Comp Cams 232-234@.050" .595"-.598" - 112LS and 110CL . 11.5-1. It made 486rwhp and 455lbtq. The rest is in the sig. This was 5 years ago. Today I'd look at the LSR Cams around the same size. Don't go too big as the cylinder diameter isn't big enough. 92-92 TB/Int - 215 or TEA stage 3 243-241's. 11.5-1 comp. 1 7/8"X3" Kooks or Am Racing Hedders. This motor likes to breath and rev around 6800-7200rpm. 42lb injectors. Good Luck

1991ls13

iTrader: (1)

^ wow thank you very much for you helpful info. Those are very impressive IMO with that cam ~same as mine~
I cant find much info on the cam you mentioned, the lsr...

msydow

i have a 383 with 11.3 to 1, ms4, stage 2.5 ls6's, fast 92/ ptm92. intake is not ported. with true duals and a 12 bolt with 4.10's it made 479hp/ 440tq. its got callies crank and rods, and weisco pistons.

1991ls13

iTrader: (1)

wow, very nice. Seems like i should be in the 450&420ish area.

Keep this great info and 383 numbers coming

nazztman4739

iTrader: (6)

what injectors should i run im going to a fast 102 intake and 1 7/8 headers