question about stock block

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Oct 12, 2004 | 01:51 PM

KamikazeIroccy

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Posts: 546

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From: Columbia, Missouri

Car: '87 Iroc-Z

Engine: 355cid Cam'd

Transmission: T5 Manual

Axle/Gears: Stock 9 Bolt

question about stock block

How much horsepower can the stock 350 TPI engine block support? I am looking to compete in SCCA racing and was just wondering cause I saw that SDPC offers a crate motor 350 TPI that puts out 375hp and 410lbs./ft of torque

Oct 13, 2004 | 05:02 PM

8Mike9

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Joined: Jul 1999

Posts: 5,183

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From: Oakdale, Ca

Car: 89 IrocZ

Engine: L98-ish

Transmission: 700R4

Are you speaking of the block specifically, or the components within?

Oct 13, 2004 | 08:28 PM

92GTA

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From: CA

Splay the main caps and have it checked professionally and it should be good to atleast 800HP IMO with a balanced & forged bottom end....

Oct 14, 2004 | 01:58 AM

Stekman

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Joined: Jul 2003

Posts: 4,803

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From: Grand Rapids, MI

Car: Z28

Engine: Sb2.2 406

Transmission: Jerico 4 speed

Axle/Gears: Ford 9" 3.60

For most typical street builds, the factory setup will be sufficient whether that be 2 or 4 bolt mains. Obviously, you could splay the 2 bolts and use the steel caps for strength, however, in many cases, its a bit overkill (where 4 bolt mains will be sufficient). I would be worried about the rod bolts before the main cap bolts.

How much power are you looking to put out?