Wiseco 4.030 forged pistons for 355
Wiseco 4.030 forged pistons for 355
Wiseco pro tru forged flat top pistons
part # PT008H3
summit list $479.99
Still brand new in box all wrapped up
Chevrolet: 350, 4.030, 3.480 in. stroke, 6.000 in. long connecting rod, flat top style, with 23 degree heads, forged piston kit with plasma-moly rings, chromemoly wrist pins, and Spiro locks.
$450 shipped.
part # PT008H3
summit list $479.99
Still brand new in box all wrapped up
Chevrolet: 350, 4.030, 3.480 in. stroke, 6.000 in. long connecting rod, flat top style, with 23 degree heads, forged piston kit with plasma-moly rings, chromemoly wrist pins, and Spiro locks.
$450 shipped.
here is a good calculation of the compressure ratio these pistons will give
Using these figures:
Bore: 4.030
Stroke: 3.48
Deck height: 0.025
gasket: 0.049
These pistons have:
valve relief of: 5.4cc
comp height: 1.260
using the calculator on this board:
Stock LT1:
10.5:1
Stock heads (58cc as decided by these threads: http://web.camaross.com/forums/showt...chambers+stock AND http://web.camaross.com/forums/showt...chambers+stock )
10.2:1
With 54cc heads:
10.7:1
With 52cc heads:
11:1
Hope this help!
Using these figures:
Bore: 4.030
Stroke: 3.48
Deck height: 0.025
gasket: 0.049
These pistons have:
valve relief of: 5.4cc
comp height: 1.260
using the calculator on this board:
Stock LT1:
10.5:1
Stock heads (58cc as decided by these threads: http://web.camaross.com/forums/showt...chambers+stock AND http://web.camaross.com/forums/showt...chambers+stock )
10.2:1
With 54cc heads:
10.7:1
With 52cc heads:
11:1
Hope this help!
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gonzo275rltw
LT1 Based Engine Tech
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