Author Topic: 350 heads and 305 block  (Read 1376 times)

Offline st3vomettler

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350 heads and 305 block
« on: November 02, 2015, 09:25:40 PM »
I am wanting some opinions on a 86 305 block casting number 14088551 and 350 head with casting number 333882.
77 c10 Silverado 350 nv3500 5spd

Offline Dr_Snooz

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Re: 350 heads and 305 block
« Reply #1 on: November 02, 2015, 10:04:25 PM »
I'm in favor! ROFL
1986 GMC C-2500 Crew Cab, 7.4L, TH400 -- RIP Chester

1989 Chevy Suburban V-2500, 5.7L, TH400

1990 Chevy C-3500 Ext. Cab, 7.4L, 3L80

Offline st3vomettler

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Re: 350 heads and 305 block
« Reply #2 on: November 02, 2015, 10:13:18 PM »
Ok do you now it it will drop the compression much?
77 c10 Silverado 350 nv3500 5spd

Offline SkinnyG

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Re: 350 heads and 305 block
« Reply #3 on: November 03, 2015, 09:54:13 AM »
882 heads on a stock 70's 350 run close to 8:1 compression.  On a 305 you can do the math, but I'll bet it's going to drop close to 7:1.  Might be an awesome candidate for ridiculous boost, though!
The Crusty Chevy: 1977 Silverado, shortboxed & dropped, potato-potato.

Offline st3vomettler

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Re: 350 heads and 305 block
« Reply #4 on: November 03, 2015, 11:38:56 AM »
Ok the Pistons are dish shape but I don't now it that will effect anything.
77 c10 Silverado 350 nv3500 5spd