LT1 heads on Gen I SBC
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Will they bolt on? Yes.
Are they a "bolt-on"? No.
The cooling passages are different. Several hot rodders have done the welding and machining to get them to work, but it ain't cheap, and it doesn't make any sense when you can get a set of Vortec heads and a Vortec intake manifold, bolt them on your Gen I SBC block, and get all of the benefits of LT1 heads on a Gen I SBC block.
Are they a "bolt-on"? No.
The cooling passages are different. Several hot rodders have done the welding and machining to get them to work, but it ain't cheap, and it doesn't make any sense when you can get a set of Vortec heads and a Vortec intake manifold, bolt them on your Gen I SBC block, and get all of the benefits of LT1 heads on a Gen I SBC block.
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 6
Likes: 0
Car: 86 trans am
Engine: 355 sbc
Transmission: Th-350
Axle/Gears: 10 bolt w/ 3.73's
Re: LT1 heads on Gen I SBC
Ok thanks for clearing that up for me........so I need vortex heads and a intake I shure appreciate it thanks again
Joined: Dec 2005
Posts: 6,499
Likes: 31
From: Macon, GA
Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70
Re: LT1 heads on Gen I SBC
1996-1998 Silverado/Sierra 350 heads. Vortec. 906 or 062 casting.
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
'96-'99, and a few '00's. 350's only. If it has a 305, move on to the next truck. Always verify the casting #'s - they should end in 906 or 062, as Infernal noted.
Or, to get it all in one slam dunk, go here:
http://sdparts.com/details/scoggin-d...er/sd8060rakit for Performer intake
or,
http://sdparts.com/details/scoggin-d...ter/sd8060raag for Performer RPM intake
(Also as Infernal noted, it's "Vortec", not "Vortex".)
Or, to get it all in one slam dunk, go here:
http://sdparts.com/details/scoggin-d...er/sd8060rakit for Performer intake
or,
http://sdparts.com/details/scoggin-d...ter/sd8060raag for Performer RPM intake
(Also as Infernal noted, it's "Vortec", not "Vortex".)
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