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Highsierra84

Junior Member
Joined
Mar 1, 2021
Posts
7
Reaction score
9
Location
Placerville
First Name
Ryan
Truck Year
1984
Truck Model
k25
Engine Size
350
Looks like summit makes a decent flat top piston for cheap.
https://www.summitracing.com/parts/sum-17351c-20
I'll be getting this.
I'll have to do some math for the head gasket thickness, but this 0.020" over flat top piston with those 72cc cast iron heads should be in the ball park for pump gas. My goal is to have run on pump gas.
With Flat top pistons with those 72cc heads and a standard .040 head gasket, What compression I'm I looking at. I'm not to familiar with compression ratios.
 

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