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CHEVY SMALLBLOCK BORE AND STROKE

ENGINEBORE AND STROKENOTES
2623.671" x 3.10"Gen. I, 5.7" rod
2653.750" x 3.00"'55-'57 Gen.I, 5.7" rod
2653.750" x 3.00"'94-'96 Gen.II, 4.3 liter V-8 "L99", 5.94" rod
2673.500" x 3.48"Gen.I, 5.7" rod
2833.875" x 3.00"Gen.I, 5.7" rod
2933.780" x 3.27"'99-later, Gen.III, "LR4" 4.8 Liter Vortec, 6.278" rod
3024.000" x 3.00"Gen.I, 5.7" rod
3053.740" x 3.48"Gen.I, 5.7" rod
3073.875" x 3.25"Gen.I, 5.7" rod
3253.780" x 3.62"'99-later, Gen.III, "LM7" 5.3 Liter Vortec, 6.098" rod
3274.000" x 3.25"Gen.I, 5.7" rod
3463.900" x 3.62"'97-later, Gen.III, "LS1", 6.098" rod
3504.000" x 3.48"Gen.I, 5.7" rod
3504.000" x 3.48"'96-'01, Gen. I, Vortec, 5.7" rod
3503.900" x 3.66"'89-'95, "LT5", in "ZR1" Corvette 32-valve DOHC,
5.74" rod
3644.000" x 3.62"'99-later, Gen.III, "LQ4" 6.0 Liter Vortec, 6.098" rod
3834.000" x 3.80"'00, "HT 383", Gen.I truck crate motor 5.7" rod
4004.125" x 3.75"Gen.I, 5.565" rod

Two common, non-factory smallblock combinations:
ENGINEBORE AND STROKENOTES
3774.155" x 3.48" 5.7" or 6.00" rod 400 block and a 350 crank
with "spacer" main bearings
3834.030" x 3.76" 5.565" or 5.7" or 6.0" rod. 350 block and a 400 crank,
main bearing crank journals cut to 350 size
 
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