First Gen Camaro Data Resource
This site has been created to provide reference for people like us not only determine what we have
as a car and under the hood but, to also help those that are looking to purchase a car or part
and help make sure you know what you are getting in the process. We have completed be adding things
like Muncie Transmission and GM Bellhousing Information/decoding, additional SBC/BBC casting numbers for heads,
blocks, crankshafts and more. We will be adding additional sections and working to verify/update the data that
is available as we move forward with this project in the coming years. The information provided on this site
has been gathered from several sources and provided here as an effort to reduce your search time when
researching a car or part.
Thank you for visiting our site and for your support.
1968ss.com
CHEVY V-8 BORE AND STROKE LIST
CHEVY SMALLBLOCK V-8 BORE AND STROKE LIST
262 = 3.671" x 3.10" (5.7" rod)
265 = 3.750" x 3.00" ('55-'57 Gen.I 5.7" rod, '94-'96 Gen.II 4.3 liter V-8 "L99" 5.94" rod)
267 = 3.500" x 3.48" (5.7" rod)
283 = 3.875" x 3.00" (5.7" rod)
293 = 3.780" x 3.27" ('99-later "LR4" 4.8 Liter Vortec)
302 = 4.000" x 3.00" (5.7" rod)
305 = 3.740" x 3.48" (5.7" rod)
307 = 3.875" x 3.25" (5.7" rod)
325 = 3.780" x 3.62" ('99-later "LM7" 5.3 Liter Vortec)
327 = 4.000" x 3.25" (5.7" rod)
350 = 4.000" x 3.48" (5.7" rod)
350 = 4.000" x 3.48" ('96-'00 Vortec, 5.7" rod)
350 = 3.900" x 3.66" ('89-'95 "LT5" in "ZR1" Corvette 32-valve DOHC)(5.74" rod)
350 = 3.900" x 3.62" ('97-later Gen.III "LS1")(6.098" rod)(actually totals 346 cubic inches)
364 = 4.000" x 3.62" ('99-later "LQ4" 6.0 Liter Vortec)
383 = 4.000" x 3.80" ('00 "HT 383" Gen.I truck crate motor) (5.7" rod)
400 = 4.125" x 3.75" (5.565" rod)
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 3.76" (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"
502 = 4.466" x 4.00"
T = Tall Deck
ALL production big blocks use a 6.135" length rod.
CHEVY 348-409 V-8 BORE AND STROKE
348 = 4.125" x 3.25" (6.135" rod)
409 = 4.312" x 3.50" (6.0" rod)
427 = 4.312" x 3.65" (6.135" rod) 1963 "Z11" SHP drag race
We would like to thank everyone that has contributed to the data provided on this site. This information has been gathered from several sources and has not been verified.
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