Difference between 305 and 350?
Thread Starter
Junior Member
Joined: Apr 2012
Posts: 75
Likes: 0
From: Bethel Park pa
Car: 1984 Chevy Camaro
Engine: 305
Transmission: 700r4
Axle/Gears: 7.5in 10 bolt with 3.08
Difference between 305 and 350?
Ok I know basically everything is the same. Same stroke just bigger pistons. What is the difference on the outside of the engine. Like are the engine mounts the same? Same position? Are the heads the same? Will my exhaust fit or will I have to modify it? Stuff like that. Thanks
Moderator
Joined: Jul 1999
Posts: 17,262
Likes: 168
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: Difference between 305 and 350?
Externally, all SBC blocks are the same size. Looking at one under the hood of a car, and you won't know if it was a 265 or a 400.
Junior Member
Joined: Mar 2009
Posts: 33
Likes: 1
From: virginia
Car: 1985 camaro iroc z-28
Engine: 5.7L
Transmission: Auto
Re: Difference between 305 and 350?
i like to know a trick to find out whats under the hood of my 85 camaro. i was told a mild build 350 tpi. but i think i was tricked and is just a stock 305 tpi.
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Difference between 305 and 350?
Check the casting numbers. There are no other ways to tell.
Moderator
Joined: Jul 1999
Posts: 17,262
Likes: 168
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: Difference between 305 and 350?
Casting numbers are the best way. The newer blocks also have 5.0L and 5.7L cast into them.
Supreme Member
Joined: Jan 2012
Posts: 2,027
Likes: 33
From: Washington State
Car: 1983 BB 1995 Z28 Camaro's
Engine: 454-350
Transmission: TH350-4l60e
Axle/Gears: 373 posi-Stock
Re: Difference between 305 and 350?
And let us know what you find out and if you were scammed and by who.
Joined: Apr 2005
Posts: 7,736
Likes: 14
From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
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