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is it a 305 or a 350?

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Old Jun 25, 2004 | 12:38 AM
  #1  
MoroteZ28's Avatar
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Car: 1991 pontiac firebird
Engine: 305 V8 flo-pro exhaust
Transmission: automatic 700r4 4speed
Axle/Gears: stock 2.73's :(
is it a 305 or a 350?

my friend just bought an 84 camaro the guy told him theres a 350 in it but how can he tell ?
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Old Jun 25, 2004 | 03:45 AM
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Take the heads off and measure the bore on one of the cylinders. If its a 4" bore its a 350, if its a 3.7something its a 305. Done and done. Or just get the casting # off it and find out on some website.
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Old Jun 25, 2004 | 04:58 AM
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RB83L69's Avatar
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From: Loveland, OH, US
Car: 4
Engine: 6
Transmission: 5
Gte the casting # off the block and look it up at www.mortec.com/castnum.htm The number you need is behind the driver's side head, on the bell housing flange.
Attached Thumbnails is it a 305 or a 350?-block-casting-number.jpg  
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Old Jun 25, 2004 | 07:13 AM
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DJP87Z28's Avatar
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From: Florida
Car: 1987 Black IROC-Z (SOLD)
At the time of sale somehow those 305's turn into 350's.
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Old Jun 25, 2004 | 07:31 AM
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RB83L69's Avatar
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From: Loveland, OH, US
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They certainly do!!!

But only until the money changes hands; then they turn right back.
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Old Jun 25, 2004 | 10:00 AM
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TMX
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From: Raleigh, NC
Car: 84 & 92 Z28s
Engine: 305 carb & 305 TPI
Transmission: T-5
Originally posted by RB83L69
Gte the casting # off the block and look it up at www.mortec.com/castnum.htm
Excellent link.

-B
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Old Jun 25, 2004 | 01:26 PM
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JesasaurusRex's Avatar
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Originally posted by RB83L69
They certainly do!!!

But only until the money changes hands; then they turn right back.
Aint that the truth, and those flat tappet blocks turn into roller blocks....Bastards.
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