velox65

iTrader: (9)

Title says it all really, whats the largest cam I can run without flycutting using a stock ls2 bottom end and l92 heads, just would like to know the max limit (roughly) so I can pick a cam within limits.

Or may just go with 243s

car will be a 91 bird street/strip mostly strip.

Tainted

iTrader: (9)

theres a few factors but anything bigger than 230 on the intake side is a good place to say stop

low2001gmc

iTrader: (148)

as for a few factors, they are due to the l92/ls3 heads having alot bigger intake valves and. these factors include: cam duration, cam lsa, head milling, and gasket thickness.

spinmonster on corvette forum recommends a comp 230 234 612 598 114+2 for manual and comp 228 232 588 595 114+4 for autos. on my lq9 with ls3 heads, i went with the 228 232 and hope to enjoy in the next couple of days.

i was concerned about lift over 600 and spring life so kept under. my heads are milled .015 and i will be using cometic .040 gaskets as also recommended by the spinmonster. he made 465 and 471 rwhp with these combos and has spent considerable time dyno and actual drive testing.

good luck with your project.

velox65

iTrader: (9)

So I'm looking at under .600 lift and 230 intake duration. I'm running a carb on this so I'd like to tighten up the lsa if I could to say 110-112, can I run any lobe profile (lsr, lsa etc) or do I need to stay mild on the ramp rates. I've searched but no specific answers

Tainted

iTrader: (9)

Have pat g spec you out a cam. Hes really good with the ls2/3 and yhe LSL cam lobes are easier on springs too

velox65

iTrader: (9)

Also I'd like to have around 10:5:1 scr so mill around .20? Using a stock head gasket. ( first goal is avoid ptv issue compression comes 2nd).

Here's kinda what I'm thinking
6.0 with ls2 pistons rods
L-92 heads milled for 10:5(light clean up porting)
1 7/8" headers
Single plain carb intake
750 Cfm carb
And probably a pat g spec'd cam probably around 230-235 59x-59x with a 112 but I'm just guessing lol.
Anything sound..off?

Johnnystock

iTrader: (6)

Mine is a 230-236 629/629...ported milled LS3 heads on a LS2.. Done by New Era.. Feels awesome on the streets right from 2500rpm!

velox65

iTrader: (9)

how much where they milled if you dont mind me asking?

nobox351y

iTrader: (1)

Velox: What are you hoping to run? How much power are you looking to make? How much does the car weigh in race trim? Looking at building a similar combo.

Johnnystock

iTrader: (6)

think its .030

velox65

iTrader: (9)

Honesly id like 500whp but im not stuck on numbers to bad, as far as weight goes im shooting for 3300-3400 but im still building the car.

Sales@Tick

iTrader: (3)

Our stage 2 "street heat" cam for LS1/LS6 engines would work well. http://www.tickperformance.com/tick-...1-ls6-engines/

It is 231/238 .617"/.615 113+3.

You really should measure for PTV when milling anything as you never know if the machinist took "a little" too much more off than what he was suppose to do.

Sales4@Texas-Speed

iTrader: (4)

We have used our 231/236 .641/.615 cam a number of times with those heads with quite a bit of success. I would never guarantee 500rwhp but we have had a couple customers reach that power level, especially if the heads are ported.

anthony.fatica

iTrader: (10)

Subscribing...im starting to build an ls2 now to swap in my 00 SS and am looking for 500rwhp

LA Verde 06

Any more info?? Looking to a similar build for my 99 z28 ls2 l92s ls3 intake...

Sales@Tick

iTrader: (3)

It's really already been laid out in this thread and others.

If you're wanting specific information you can always call us at the shop, e-mail or PM me.

Scoggin Dickey

iTrader: (34)

With the same general setups most anyone is going to lead you to the same approximate specs. In similar fashion to those above, our cam for that is a 230/236 .610/.612

low2001gmc

iTrader: (148)

with the exception of martin@tick no one else posted the lsa which i believe can be critical to ptv somewhat....

litle88

iTrader: (20)

^^^ not somewhat? Pretty critical in my opinion lol ^^^^

Scoggin Dickey

iTrader: (34)

In the duration range we are all quoting the LSA is not going to change PTV enough to cause any issues. Mine isn't set on one LSA only. On some we use 115, some we use a 113. I know Texas Speed offers options as well.

I personally would recommend flycutting regardless so you can mill the heads and/or use a thinner head gasket to get compression up. It's an important step towards getting the most out of your total setup.