Stock sb400 strength?
Thread Starter
Instructor
Joined: Sep 2001
Posts: 209
Likes: 0
From: Seattle WA
Stock sb400 strength?
I posted this over in engine mods, and since I'm going to be tearing the engine down, I'd appreciate any advice from you guys about stock 2bolt sb400 parts(crank, rods, pistons) necessary to support 500hp/torque and 6500rpms. Thanks!
http://forums.corvetteforum.com/zerothread?id=535130
http://forums.corvetteforum.com/zerothread?id=535130
Melting Slicks
Joined: Jun 2002
Posts: 2,844
Likes: 99
From: Orrtanna Pa.
Re: Stock sb400 strength? (inqbus383)
I run a 4 bolt,but I hear 2 bolts are said to be even stronger in the web area.
The stock pistons were cast,and aren't worth a hill of beans for power.
The assembly I got was a Scat Series 9000 crank,5.7" Scat rods,TRW flattops,rings,bearings,flexplate and balancer.All balanced for under a grand.
I can tell you there's no vibration from the engine,even at 6500 rpms,smooth as can be,and I am pushing 500hp easy.
The stock pistons were cast,and aren't worth a hill of beans for power.
The assembly I got was a Scat Series 9000 crank,5.7" Scat rods,TRW flattops,rings,bearings,flexplate and balancer.All balanced for under a grand.
I can tell you there's no vibration from the engine,even at 6500 rpms,smooth as can be,and I am pushing 500hp easy.
Race Director
Joined: Apr 2000
Posts: 17,676
Likes: 201
From: Who says "Nothing is impossible" ? I've been doing nothing for years.
Re: Stock sb400 strength? (The Money Pit)
If you want 500 HP a forgerd crank and forged rods are a good bet but if you want to save money you can go the Scat 9000 route, I would not put anyting less in a 406 :D
Racer
Joined: Jun 2001
Posts: 440
Likes: 0
From: Sanford Florida
Re: Stock sb400 strength? (The Money Pit)
I run a 4 bolt,but I hear 2 bolts are said to be even stronger in the web area.
The stock pistons were cast,and aren't worth a hill of beans for power.
The assembly I got was a Scat Series 9000 crank,5.7" Scat rods,TRW flattops,rings,bearings,flexplate and balancer.All balanced for under a grand.
I can tell you there's no vibration from the engine,even at 6500 rpms,smooth as can be,and I am pushing 500hp easy.
The stock pistons were cast,and aren't worth a hill of beans for power.
The assembly I got was a Scat Series 9000 crank,5.7" Scat rods,TRW flattops,rings,bearings,flexplate and balancer.All balanced for under a grand.
I can tell you there's no vibration from the engine,even at 6500 rpms,smooth as can be,and I am pushing 500hp easy.
Melting Slicks
Joined: Jun 2002
Posts: 2,844
Likes: 99
From: Orrtanna Pa.
Re: Stock sb400 strength? (boredsoIstrokedit)
The guy I baught my block from had 3 other 400 blocks sitting on the garage floor next to his race Camero.He turns 7200 rpms at the track and runs nothing but Scat 9000 cranks. Never has had a problem.
