roller engines ?
Thread Starter
Joined: Oct 2008
Posts: 27
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From: Indiana
Car: 66 Chevy II SS/89 iroc
Engine: 355/305
Transmission: 350 Turbo/T5
Axle/Gears: 3.08 posi
roller engines ?
What year did GM start putting the roller valve train in the 305/350s ?
On Probation
Joined: Oct 2008
Posts: 6,319
Likes: 19
From: Northern Utah
Car: seeking '90.5-'92 'bird hardtop
Engine: several
Transmission: none
Axle/Gears: none
Re: roller engines ?
some '86 blocks had the provisions, but the first installations were the 1987s. 1986 was the intro of the 1-piece rear main seal. Most of the truck blocks were machined identical to the cars, but the trucks did not get roller lifters until '96.
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