Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!

which heads?

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Old

07-22-2008 | 01:49 AM

#1

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Joined: Nov 2007

Posts: 291

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From: Fort Worth, TX

Car: 82 Sport coupe

Engine: 355 semi roller

Transmission: TH-350 B&M ratchet shifter

Axle/Gears: 3.73 Eaton Posi

which heads?

I've got a set of 461 double humps now, and they perform great. but would a set of 58cc 416 casting heads boost my performance or hurt it? i know they will raise the compression, which generally equals power, but can they support the airflow of a 30 over 350 with a .462/.469 cam? BTW carb is a 650 holley dp.

Old

07-22-2008 | 05:57 AM

#2

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Joined: Dec 2004

Posts: 2,042

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From: Lincolnton, NC

Car: 88 IROC

Engine: 97 5.7 Vortec LT4 hotcam

Transmission: 700 r4

Axle/Gears: 3.73

Re: which heads?

keep the 461s

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