SBC 400 crank
Thread Starter
Instructor
Joined: Jun 2006
Posts: 134
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From: Scottsdale AZ
SBC 400 crank
I have a 400 ci SBC engine with a standard crank. I intend to build the engine to 406ci and about 450hp. Will the existing crank holdup or should I replace it and if so what is a good choice?
Thanks in advance, Bill
Thanks in advance, Bill
Deakins.
Le Mans Master
Joined: Jun 2004
Posts: 6,231
Likes: 65
From: Seattle WA
St. Jude Donor '14
It's within range for the crank, certainly. It kinda depends on your budget and usage - do you plan to spray or use forced induction?
The more significant concern is the block - is it a 2-bolt or 4-bolt main? The 2 bolt is fine for this application with studs (and an align-hone), but the 4-bolt would be questionable...they're the opposite of 350 blocks due to the thin outer caps.
If this is a big-dollar engine, plan on spending the $600 or so to get steel 4-bolt caps.
The more significant concern is the block - is it a 2-bolt or 4-bolt main? The 2 bolt is fine for this application with studs (and an align-hone), but the 4-bolt would be questionable...they're the opposite of 350 blocks due to the thin outer caps.
If this is a big-dollar engine, plan on spending the $600 or so to get steel 4-bolt caps.
