lowkee87

I have a 1980 2door caprice landua with this setup

1998 Firebird 5.7 LS1 fuel injected WS6
Z06 243 Heads
LS6 Intake
LS6 Cam
Pace Setter Headers
4L60E Trans with shift kit and stall
Impala SS 8.5 Rearend
3.73 gears
255 lph Walboro fuel pump
Gibson exhaust 2 1/2

td1168

iTrader: (2)

Different heads, cam, and intake with the automatic. With an m6 a max effort cam with your current set-up would get you real close.

ULTIMATEORANGESS

iTrader: (4)

maybe porting those heads a long with a better cam and intake but through an auto that number wont come easy. do you have an UDP? that will add some power. also you can go with an EWP.

Flawless02SS

iTrader: (9)

Yeah, bigger cam like a MS3 size, with Stage 2.5 heads

lowkee87

Does anyone have a Head/Cam combination that they would recommend and the price it would cost? The Car is pretty quick but i want it to at least beat the new stock challengers and camaro

M1SERY

need more cubic inches , unless you spray it or go force induction.

0silverado4

Stage 2.5 5.3 or LS6 heads, 1 7/8 headers, FAST intake, and a decent sized cam should get you there or real close. Search for similar combos on here, several threads with dyno numbers. Check Texas Speed, they have extremely affordable head and cam combos.

badformulaLS1

iTrader: (1)

A better cam with the current set up and a good tune should get you 415-425 no prob... Most people with 243s, LS6 intake, decent cam, most bolt-ons and good tune are around 420ish based on what I've seen. Add a UDP and EWP and that should put you right around your goal. I don't get why people are telling you to get heads ported or get all new heads and stuff, thats much more costly than doing what I said above and will probably put you above your goal, which isn't a problem imo...

Decadence75

iTrader: (17)

Send the heads off to AI for the 226cc program and toss in something like a SNS Stage 2 cam and you should be there.

RJDio

I'm guessing by your build that you are prob at 400rwhp now. How do I know? lol. But I have stock 241 heads and LS6 intake and small comp cam, pulley, I'd love to have pro ported 243's and ported Fast setup, good pro tune, to put me over the 420rwhp mark!

badazz81z28

iTrader: (6)

I feel a good cam will get you close. Also a UDP and a FAST intake.

I make well over 400 with my Ls1

inssanity21

iTrader: (16)

I have factory unported 243 heads, tick SNS Stg. 3, 1 7/8 headers, fast 90/90 intake, and an under drive pulley for 427 rwhp and 400+ torque above 3800 rpms

Blackpanther99

iTrader: (8)

Custom grind cam from Tick, FAST intake, some head work from AI on those 243s, specd stall converter, 3" true dual exhaust setup or 3" ORY setup and you will be close. The automatic tranny will make it tough though

1BAD98LS1

iTrader: (33)

The possibilities here are endless, first i'd start off with no less than 3" exhaust for starters. Then sell the ls6 cam and intake. Take that $$$ and a little more and call Martin@tick to put you together a very nice streetable custom grind cam with an aluminum intake. May even consider a clean mill on the heads as well. 430whp won't be a problem. Just my thoughts..

99Bluz28

iTrader: (35)

I'd have your 243 heads CNC ported and milled ( get the compression up to around 11.0:1) by either TEA or AI (Advanced Induction) . As far as cams that's going to depend on what rpm your TC stalls at, unless you're will to go with a high stall TC. I'd recommend the Tick SNS Stage 2 cam with a 3200-3600 stall TC. You might not need to step up to a FAST intake to meet you 430rwhp goal, so I'd hold off on the FAST intake until you get it dyno tuned.
Got a few questions.
Are the Headers are long tubes?
What size injectors does it have?
Is the 2.5" exhaust a true dual setup?
What stall TC does your trans have?
Where does the air filter draw air from?
Got any photo's of the cars engine compartment?
Has it been dyno tuned ?

Sales@Tick

iTrader: (3)

I would be more worried about what it traps at the track and what it runs E.T. wise than I would be a dyno number.

That said, dyno's a good for tuning, good for seeing where your power band is, and getting the car ready for the track/street.

This is especially true with automatics as they never dyno as well as a 6 speed transmission. I always tell my auto customers, whether they have a 60e, Th400, 80e or a glide to not put a lot of faith in what the dyno spits out.

1BAD98LS1

iTrader: (33)

The short times and consistency of an auto makes up for not having the dyno queen numbers

02BlkZ28

First motor i built for my 200Camaro was a stock bottom end LS1 with Trick Flow 215cc head $2500 Trick Flow Cam 595/595 238/242 $350.. 92mm FAST intake & TB. Made 456 to the wheels. It was a 6 speed car though. Not sure what it would of done in a auto car