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Old 01-20-2013, 10:30 PM
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vortec head swap

1995 TBI SB 350 5.7 STD> bore block. I would like to know if I can use Flat top Probe PN.2256F Pistons and Edelbrock cam PN.3702 with a vortec head swap?

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Old 01-21-2013, 01:03 AM
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The Pistons wont interfere with the Vortec Heads. The Cam's lift is also within the Vortec's stock lift limits.
Your compression Ratio may be too high tho'.
4.00" Bore X 3.48" Stroke.
2VR Piston w/+4cc, 64cc Head.
.015" Shim Gasket, .025" Deck Ht., .040" Quench.
Cr. = 10.40 to 1

A Piston with a 12cc D-Dish would give about 9.51 to 1 Cr.
14cc = 9.31Cr
16cc = 9.12Cr
18cc = 8.94Cr
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Old 01-21-2013, 06:06 PM
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Vortec head swap

What will happen at10.40 cr.?93octane. What will be the best cr? And thanks for the replys
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