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I got asked? (I need a new crank,can I use a 305 cast crank in my 350 engine?)
yes the 305 crank can be used,BUT..the 305 crank is ballanced differantly and has slightly differant counter weights, the damper and timing marks may differ on some combos, and the 305 crank is not designed to ballance correctly with the rest of the 350s rotating assembly, and it possiable that youll need a differant damper and flex plate, youll need to reballance the assembly at a minimum if your interested in high rpm ,high performance use!
since youll more than likely need to get the total rotateing assembly reballanced anyway and that if you use lighter weight aftermaket pistons and rods the crank should be fine as far as ballance goes,(after the ballance job) but also remember that cast pistons, stock rods and a cast crank like that 305 cast crank are not the best choice if your thinking about 6500rpm plus engine rpm ranges as a standard application
now keep in mind a good ballance job costs about $150-$200 so what will you be saving? and why are you not building a 383 (3.75" stroke) or 396 (3.875" stroke) short block? if your building an engine and need to buy pistons and a crank anyway...?
http://www.rdspeed.com/rotating%20kits.htm
http://www.hotrod.com/techarticles/79478/
http://www.prewittracing.com/newpage2.htm
http://store.summitracing.com/partdetail.asp?part=SUM-CSUM383KIT&view=257
http://www.bracketmasters.com/small_block_stroker_383_cu.htm
http://www.allchevyengines.com/383-350.htm
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 = 3.780" 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 = 3.740" x 3.48" (Gen.I, 5.7" rod)
307 = 3.875" x 3.25" (Gen.I, 5.7" rod)
325 = 3.780" x 3.622" ('99-later, Gen.III, "LM7" 5.3 Liter Vortec, 6.098" rod)
327 = 4.000" x 3.25" (Gen.I, 5.7" rod)
346 = 3.900" 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, "LQ4" 6.0 Liter Vortec, 6.098" rod)
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)
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
yes the 305 crank can be used,BUT..the 305 crank is ballanced differantly and has slightly differant counter weights, the damper and timing marks may differ on some combos, and the 305 crank is not designed to ballance correctly with the rest of the 350s rotating assembly, and it possiable that youll need a differant damper and flex plate, youll need to reballance the assembly at a minimum if your interested in high rpm ,high performance use!
since youll more than likely need to get the total rotateing assembly reballanced anyway and that if you use lighter weight aftermaket pistons and rods the crank should be fine as far as ballance goes,(after the ballance job) but also remember that cast pistons, stock rods and a cast crank like that 305 cast crank are not the best choice if your thinking about 6500rpm plus engine rpm ranges as a standard application
now keep in mind a good ballance job costs about $150-$200 so what will you be saving? and why are you not building a 383 (3.75" stroke) or 396 (3.875" stroke) short block? if your building an engine and need to buy pistons and a crank anyway...?
http://www.rdspeed.com/rotating%20kits.htm
http://www.hotrod.com/techarticles/79478/
http://www.prewittracing.com/newpage2.htm
http://store.summitracing.com/partdetail.asp?part=SUM-CSUM383KIT&view=257
http://www.bracketmasters.com/small_block_stroker_383_cu.htm
http://www.allchevyengines.com/383-350.htm
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 = 3.780" 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 = 3.740" x 3.48" (Gen.I, 5.7" rod)
307 = 3.875" x 3.25" (Gen.I, 5.7" rod)
325 = 3.780" x 3.622" ('99-later, Gen.III, "LM7" 5.3 Liter Vortec, 6.098" rod)
327 = 4.000" x 3.25" (Gen.I, 5.7" rod)
346 = 3.900" 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, "LQ4" 6.0 Liter Vortec, 6.098" rod)
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)
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