What pistons ar these??
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Joined: Mar 2010
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From: Fayetteville Ar
Car: 85 Firbird
Engine: 406
Transmission: 700r4 built
Axle/Gears: 3.42 posi 10 bolt
What pistons ar these??
I am putting a 400 together and it came with H623p .030 piston. I thought they where speed pro piston but while googling I found the same part number but they are saying there sterling piston. I need to find out so I know the compression. Any help guys.
Thread Starter
Member
iTrader: (1)
Joined: Mar 2010
Posts: 103
Likes: 0
From: Fayetteville Ar
Car: 85 Firbird
Engine: 406
Transmission: 700r4 built
Axle/Gears: 3.42 posi 10 bolt
Re: What pistons ar these??
Yes they are domes. I guess Im going to buy new pistons because with these pistons and 64 heads the compression is around 12.
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