LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Hp numbers anyone????

Thread Tools
 
Search this Thread
 
Old Feb 15, 2009 | 01:07 PM
  #1  
strkedltweezy's Avatar
Thread Starter
Staging Lane
iTrader: (4)
 
Joined: Nov 2008
Posts: 55
Likes: 0
From: Tyler, Tx
Default Hp numbers anyone????

Well im just about finished up with my 383 build and i was wondering what hp #s ya'll guys would be expecting for it has the following mods:

383: forged shortblock with flat top pistons
AFR 195cc new eliminator heads
Ai 228/236 cam .601 lift intake, .577 exhaust @ .050
Edelbrock rpm Intake port matched
1 3/4 hooker longtubes
comp cam pro mag 1.6 rockers
11.0 cr
aluminum flywheel
msd billet distributor
super street damper ATI
Reply
Old Feb 15, 2009 | 01:38 PM
  #2  
ss.slp.ls1's Avatar
TECH Senior Member
15 Year Member
iTrader: (36)
 
Joined: Jan 2008
Posts: 8,184
Likes: 28
From: Orange County, CA
Default

Originally Posted by strkedltweezy
Well im just about finished up with my 383 build and i was wondering what hp #s ya'll guys would be expecting for it has the following mods:

383: forged shortblock with flat top pistons
AFR 195cc new eliminator heads
Ai 228/236 cam .601 lift intake, .577 exhaust @ .050
Edelbrock rpm Intake port matched
1 3/4 hooker longtubes
comp cam pro mag 1.6 rockers
11.0 cr
aluminum flywheel
msd billet distributor
super street damper ATI
I wish I could give you a number, but damn, that thing is going to be a monster! Please post videos and pics!
Reply
Old Feb 15, 2009 | 01:44 PM
  #3  
SoxXpupPeT's Avatar
TECH Junkie
iTrader: (34)
 
Joined: May 2008
Posts: 3,431
Likes: 1
From: Yonkers, NY
Default

wow that thing is going to be a beast! should clear the 400 mark no problem
Reply
Old Feb 15, 2009 | 02:13 PM
  #4  
James Montigny's Avatar
11 Second Club
iTrader: (13)
 
Joined: May 2006
Posts: 2,843
Likes: 0
Default

426rwhp @ 6000rpm
396rwtq @ 5000rpm
Reply
Old Feb 15, 2009 | 02:21 PM
  #5  
slomarao's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Dec 2007
Posts: 1,147
Likes: 0
From: chicago,IL
Default

How much work done to the AFR's?
Reply
Old Feb 15, 2009 | 02:44 PM
  #6  
LS1 SPEED's Avatar
Banned
iTrader: (22)
 
Joined: Jan 2004
Posts: 4,957
Likes: 2
From: Schaumburg,IL
Default

450 rwhp

when do you plan to tune the car?
Reply
Old Feb 15, 2009 | 02:56 PM
  #7  
strkedltweezy's Avatar
Thread Starter
Staging Lane
iTrader: (4)
 
Joined: Nov 2008
Posts: 55
Likes: 0
From: Tyler, Tx
Default

The AFR are untouched but I sent the flow numbers to Ai To get a custom cam and that what i ended up with Im gonna be recieving my pcm probably next week from pcmsforless.com but i plan on dyno tuning some time later.... my goal is somewhere from 425 to 450 at the wheels with the six speed.
Reply
Old Feb 15, 2009 | 03:12 PM
  #8  
RamAir95TA's Avatar
TECH Senior Member
iTrader: (2)
 
Joined: May 2005
Posts: 9,467
Likes: 8
From: South Jersey
Default

IMO, if the AFRs are untouched, I'd expect around 410-420rwhp, and that cam isn't going to fair as well as a bigger cam could on a 383. 383s need lots of duration to fill the cylinders, and that cam is better suited for stock ported heads on stock shortblocks. AFRs by themselves, while flowing better than stock, provide comparable gains to mildly ported stock castings when used with the same cam. No doubt, stock for stock, they are better than stock heads, but it's the POTENTIAL for those heads that will really wake your setup up.

If you go with a bigger cam, and get the AFRs ported, I don't see 450+ being a problem in the hands of a good tuner, easily. Otherwise, 410 to 420.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Feb 17, 2009 | 08:14 AM
  #9  
Advanced Induction's Avatar
FormerVendor
iTrader: (2)
 
Joined: Dec 2008
Posts: 323
Likes: 4
From: Concord, NC
Smile

Originally Posted by RamAir95TA
IMO, if the AFRs are untouched, I'd expect around 410-420rwhp, and that cam isn't going to fair as well as a bigger cam could on a 383. 383s need lots of duration to fill the cylinders, and that cam is better suited for stock ported heads on stock shortblocks. AFRs by themselves, while flowing better than stock, provide comparable gains to mildly ported stock castings when used with the same cam. No doubt, stock for stock, they are better than stock heads, but it's the POTENTIAL for those heads that will really wake your setup up.

If you go with a bigger cam, and get the AFRs ported, I don't see 450+ being a problem in the hands of a good tuner, easily. Otherwise, 410 to 420.
Better heads are always a sound investment. That cam and it's brothers we've run for years will make in excess of 425rwhp SAE on stock shortblock cars with the 200cc CNC'd stock head we offer.

Online one of the most common mistakes is to focus on one aspect of the vehicle's performance to the exclusion of everything else. Of course the car will make more power at high rpm with a large cam. Question is, will it run better?

Good luck with your project!
Reply




All times are GMT -5. The time now is 08:52 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE