350 Vortec or 86-95 block. Better?
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Joined: Oct 2012
Posts: 123
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From: Wisconsin & FOB fenty AFG
Car: 1991 Camaro RS
Engine: 305
Transmission: T5
Axle/Gears: 7.6" 3.73 yukon locker
350 Vortec or 86-95 block. Better?
I have everything ordered for the engine but the short block. What would be a better choice?
A casting# 880 1996-2000, 350 4 bolt vortec block or a casting#638 1986-1995 4 bolt roller TBI block.
Both blocks are 4 bolt mains and rollers.
Is the only difference the TBI block has the fuel pump mounting and the Vortec does not?
A casting# 880 1996-2000, 350 4 bolt vortec block or a casting#638 1986-1995 4 bolt roller TBI block.
Both blocks are 4 bolt mains and rollers.
Is the only difference the TBI block has the fuel pump mounting and the Vortec does not?
Joined: Oct 2001
Posts: 12,216
Likes: 1,141
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: 350 Vortec or 86-95 block. Better?
Sounds about right. The TBI shortblock maybe a rebuilt core? or is it new?
Thread Starter
Member
Joined: Oct 2012
Posts: 123
Likes: 4
From: Wisconsin & FOB fenty AFG
Car: 1991 Camaro RS
Engine: 305
Transmission: T5
Axle/Gears: 7.6" 3.73 yukon locker
Re: 350 Vortec or 86-95 block. Better?
Both rebuilt. .010-.030 on bore and 000 -.010 on crank. decked and bla bla bla.
Joined: Apr 2005
Posts: 7,736
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From: Not in Kansas anymore
Car: 82 Z28
Engine: 383 SP EFI/ 4150 TB
Transmission: T400
Axle/Gears: QP 9" 3.73
Thread Starter
Member
Joined: Oct 2012
Posts: 123
Likes: 4
From: Wisconsin & FOB fenty AFG
Car: 1991 Camaro RS
Engine: 305
Transmission: T5
Axle/Gears: 7.6" 3.73 yukon locker
Re: 350 Vortec or 86-95 block. Better?
Woah good info there for sure. thank you! so it looks like the TBI block is the way to go.
Joined: Oct 2001
Posts: 12,216
Likes: 1,141
From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: 350 Vortec or 86-95 block. Better?
Or drill 2 1/8th inch hole in your T-stat for coolant to circulate..
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