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  • 305 compared to 350

    alright up till today i assumed the 305 and 350 are 2 completely different blocks however someone told me they are the same block cept the 305 has a smaller bore...............so when i tryed finding info online i found that the 305 and 350 both have the same stroke however the 305 has 3.74 bore and the 350 has 4.00 bore.....so my question is are they the same block or are they 2 completely different engines?
    94 Pontiac Firebird-V6<br />-NxWetKit,RamAir,MSD Dis4, Coils,&Wires,DynomaxExhuast w/testpipe,NittoDR\'s&DunlopSPort5000s,17\"CrEagleAl loys,TransgoShifKit/VetteServo<br />91 Jeep Wrangler-5.7 Chevy350<br />-6\"ProComp SuspensionLift,M/T BajaClaws35x12.5,& more goodies

  • #2
    different blocks. The 305 can not SAFELY be bored out to match the 350 bore. Same case as teh Poncho 350 & 400 blocks. Too much difference. But Still, there's really nothing you couldn't do to one (bolt on, cam, etc.,) that you caint do to the other.
    1978 Formula 461 in progress of being built :rock:
    2013 Ram 1500 Big Horn

    former owner of 85 bird w/ 2.8 - 3.4 - 3800 II - 5.0
    94 comero 3.4

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    • #3
      yea i kno everymod you can do to the 350 u can do to the 305 but with alot less gain
      94 Pontiac Firebird-V6<br />-NxWetKit,RamAir,MSD Dis4, Coils,&Wires,DynomaxExhuast w/testpipe,NittoDR\'s&DunlopSPort5000s,17\"CrEagleAl loys,TransgoShifKit/VetteServo<br />91 Jeep Wrangler-5.7 Chevy350<br />-6\"ProComp SuspensionLift,M/T BajaClaws35x12.5,& more goodies

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