402/12 bolt/stalled A4 HP???
Thread Starter
TECH Apprentice
iTrader: (9)
Joined: Nov 2003
Posts: 320
Likes: 0
From: S.W. Louisiana
402/12 bolt/stalled A4 HP??? Any guess what my car will dyno with a 402 Ls2 with ET performance 240cc heads. Not finalized on the cam but right now thinking about a 248/253 .629/.622 114 Port matched fast 90 and NW 90 tb. A built 4l60e with a 3200 stall and a 12 bolt with 3.42. I have a racetonix fuel pump and 42lbs injectors amd kooks 1 7/8 headers. I also have a direct port and a standalone fuel system and will be hitting it with a 300 progressive shot. What do think my NA hp will be and also on the bottle. I am just wondering what to expect. Thanks
Last edited by SMDLS1; Nov 14, 2005 at 11:23 PM.
With those heads...an auto 12 bolt, I would look for 480-510 SAE RWHP... 
A friend of mines auto, made 470 with a lot smaller cam, with less head and through a 9 inch. The engine later made 530 SAE with a bigger mechanical roller...
Oh yeah...If that was a manual car with the 12 bolt, I would think 550ish would sound about right.....
A friend of mines auto, made 470 with a lot smaller cam, with less head and through a 9 inch. The engine later made 530 SAE with a bigger mechanical roller...Oh yeah...If that was a manual car with the 12 bolt, I would think 550ish would sound about right.....
Last edited by jimbob; Nov 8, 2005 at 06:17 AM.
Thread Starter
TECH Apprentice
iTrader: (9)
Joined: Nov 2003
Posts: 320
Likes: 0
From: S.W. Louisiana
Originally Posted by ls1wannabe
Are the heads milled, if so what compression? I would say 525 rwhp sounds about right.
Thread Starter
TECH Apprentice
iTrader: (9)
Joined: Nov 2003
Posts: 320
Likes: 0
From: S.W. Louisiana
Originally Posted by JaSSoN
Why a 4l60e?
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
I watched a SS with a 402 iron block, 12 bolt, 3600 stall, ls6 intake, stage II LS6 heads, put down 462hp N/A & 553hp on a small dry shot. Prolly would have done more on the jug but it was still running the stock fuel pump. The CR was I think he said 11-1. So im going to say around 480hp N/A would be my guess.
Thread Starter
TECH Apprentice
iTrader: (9)
Joined: Nov 2003
Posts: 320
Likes: 0
From: S.W. Louisiana
Originally Posted by MeentSS02
I'd guess somewhere around 300 RWHP or so 
Seriously though...I wouldn't expect great dyno results.
Seriously though...I wouldn't expect great dyno results.
Originally Posted by Z'mnypit
I watched a SS with a 402 iron block, 12 bolt, 3600 stall, ls6 intake, stage II LS6 heads, put down 462hp N/A & 553hp on a small dry shot. Prolly would have done more on the jug but it was still running the stock fuel pump. The CR was I think he said 11-1. So im going to say around 480hp N/A would be my guess.
Originally Posted by Bo White
This one also only had a 23x/23x split cam too
Thread Starter
TECH Apprentice
iTrader: (9)
Joined: Nov 2003
Posts: 320
Likes: 0
From: S.W. Louisiana
Originally Posted by Got Me SOM
That is a big cam, I think you need to restall your converter.
On spray you should make 750 rear with ease. I hope you have A LOT of suspension work!
should be fun
On spray you should make 750 rear with ease. I hope you have A LOT of suspension work!
should be fun
What fuel pump are you running? It looks like your gonna need alot more than just 1 walbro.Just curious because I plan to build something similar in the future.Nevermind i'm an idiot I just reread your post and saw the standalone fuel system.What one did you go with?
Thread Starter
TECH Apprentice
iTrader: (9)
Joined: Nov 2003
Posts: 320
Likes: 0
From: S.W. Louisiana
Originally Posted by Jake the SSnake
What fuel pump are you running? It looks like your gonna need alot more than just 1 walbro.Just curious because I plan to build something similar in the future.Nevermind i'm an idiot I just reread your post and saw the standalone fuel system.What one did you go with?
i just made 406rwhp/446rwtq with a 3800 stall and 3:73 gears with my forged iron zl402 and a 8.5:1 compression ratio so u should make decently higher #s my numbers were wtih stock injectors too