Bore and stroke

[cjriojas]

Found this online last night. Thought it might be helpful. Link is here too.

Chevy V8 bore & stroke chart

CHEVY SMALLBLOCK V-8 BORE AND STROKE

262 = 3.671" x 3.10" (Gen. I, 5.7" rod)
265 = 3.750" x 3.00" (''55-''57 Gen.I, 5.7" rod)
265 = 3.750" x 3.00" (''94-''96 Gen.II, 4.3 liter V-8 "L99", 5.94" rod)
267 = 3.500" x 3.48" (Gen.I, 5.7" rod)
283 = 3.875" x 3.00" (Gen.I, 5.7" rod)
293 = 3.779" x 3.27" (''99-later, Gen.III, "LR4" 4.8 Liter Vortec, 6.278" rod)
302 = 4.000" x 3.00" (Gen.I, 5.7" rod)
305 = 3.736" x 3.48" (Gen.I, 5.7" rod)
307 = 3.875" x 3.25" (Gen.I, 5.7" rod)
325 = 3.779" x 3.622" (''99-later, Gen.III, "LM7", "LS4 front wheel drive V-8" 5.3 Liter Vortec, 6.098" rod)
327 = 4.000" x 3.25" (Gen.I, 5.7" rod)
345 = 3.893" x 3.622" (''97-later, Gen.III, "LS1", 6.098" rod)
350 = 4.000" x 3.48" (Gen.I, 5.7" rod)
350 = 4.000" x 3.48" (''96-''01, Gen. I, Vortec, 5.7" rod)
350 = 3.900" x 3.66" (''89-''95, "LT5", in "ZR1" Corvette 32-valve DOHC, 5.74" rod)
364 = 4.000" x 3.622" (''99-later, Gen.III, "LS2", "LQ4" 6.0 Liter Vortec, 6.098" rod)
376 = 4.065" x 3.622" (2007-later, Gen. IV, "L92", Cadillac Escalade, GMC Yukon)
383 = 4.000" x 3.80" (''00, "HT 383", Gen.I truck crate motor, 5.7" rod)
400 = 4.125" x 3.75" (Gen.I, 5.565" rod)
427 = 4.125" x 4.00" (2006 Gen.IV, LS7 SBC, titanium rods)

Two common, non-factory smallblock combinations:

377 = 4.155" x 3.48" (5.7" *or* 6.00" rod)
400 block and a 350 crank with "spacer" main bearings
383 = 4.030" x 3.75" (5.565" *or* 5.7" *or* 6.0" rod)
350 block and a 400 crank, main bearing crank journals
cut to 350 size

CHEVY BIG BLOCK V-8 BORE AND STROKE

366T = 3.935" x 3.76"
396 = 4.096" x 3.76"
402 = 4.125" x 3.76"
427 = 4.250" x 3.76"
427T = 4.250" x 3.76"
454 = 4.250" x 4.00"
496 = 4.250" x 4.37" (2001 Vortec 8100, 8.1 liter)
502 = 4.466" x 4.00"
572T = 4.560" x 4.375" (2003 "ZZ572" crate motors)

T = Tall Deck

ALL production big blocks used a 6.135" length rod.


CHEVY 348-409 V-8 BORE AND STROKE

348 = 4.125" x 3.25" (6.125" rod)
409 = 4.312" x 3.50" (6.010" rod)
427 = 4.312" x 3.65" (6.135" rod) 1963 "Z11" SHP drag race


Chris

[SLO TRUCK]

Nice post should be made a sticky

[AFSP1211]

Then there's this: Interactive Engine Displacement Calculator for those wanting some off the wall combo to get a particular CID

[cjriojas]

Then there's this: Interactive Engine Displacement Calculator for those wanting some off the wall combo to get a particular CID

Thank you for this website. It will help me a boatload in the future.


Chris

[GasGuzzler]

Thanks for including the oddest W-engine Z11 427 and the suckiest engine known to man....the Big Block Chevy 366.

[cjriojas]

Thanks for including the oddest W-engine Z11 427 and the suckiest engine known to man....the Big Block Chevy 366.

i dont know anything about that engine. what makes it so sucky

[ma.racing]

they don have the 408 on there

[cjriojas]

Lots of new comers so i decided to bring this to the top again.