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will this build up work?

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Old Oct 9, 2008 | 12:36 AM
  #1  
blackdemon89ta's Avatar
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will this build up work?

I picked up an early 4 bolt main 350 from a 70's truck. I checked the numbers on the block and heads. the heads are 75cc with 1.9/1.5 or 2.0/1.6 valves. The engine suppose to push 270hp. i plan on puttin my tpi system and 416 heads on with a cam from summit. SO will this raise my HP? or NOT? or just keep it stock with just bolt on mods? I'm just looking for something around the 300hp range.
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Old Oct 9, 2008 | 01:07 PM
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
It will work. Many have done it. Port clean-up of the heads and 1.94" intake valves would help.

300 HP out of a TPI isn't an easy task. But, the cam is critical. What were you planning?
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Old Oct 9, 2008 | 04:24 PM
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10secondhopeful's Avatar
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From: Middle Tennessee
Car: '84 Z28
Engine: 350
Transmission: 700r4
Axle/Gears: 3.73
Re: will this build up work?

I don't see why that wouldn't put you at 300HP if not more, like five7kid said, the cam lift and duration specs are extremely important
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Old Oct 10, 2008 | 05:19 AM
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blackdemon89ta's Avatar
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Re: will this build up work?

the cam i was thinking around a zz4 cam specs. nothing too radical just something fun and of course with new springs,lifters and 1.6 roller rockers.
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