Roller conversion to non-roller block....
Thread Starter
Racer
Joined: Nov 2004
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Roller conversion to non-roller block....
Is it possible to use factory GM 87-up roller lifters, lifter retainers,pushrods, and spider tray in a 85/86 block if the bolt holes are drilled and tapped for the spider tray...? TIA
Race Director
Joined: Feb 2004
Posts: 12,518
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Nope.
Lifter bosses are too short and the standoffs are raised in the lifter valley on an 87 and up block. Then you have the thrust plate issue, but that is easily solved with a thrust button.
In your case, a retro fit roller conversion is the best option.
Lifter bosses are too short and the standoffs are raised in the lifter valley on an 87 and up block. Then you have the thrust plate issue, but that is easily solved with a thrust button.
In your case, a retro fit roller conversion is the best option.
Race Director
Joined: Feb 2004
Posts: 12,518
Likes: 19
The advantage in power does not really come from the roller lifter, but the ability for the roller style cams to have more agressive lobes. This is what makes the power worthwhile. The wheel on a factory roller lifter, in my opinion does not give any gain at all due to the larger, heavier valve lifter. Oil temps probably go down a bit from the roller though.
In my opinion, if you are building a motor to run hard, retro roller is worth every penny.
In my opinion, if you are building a motor to run hard, retro roller is worth every penny.
Race Director
Joined: Sep 2000
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From: The Top of Utah
Originally Posted by CorvAdel
Is it possible to use factory GM 87-up roller lifters, lifter retainers,pushrods, and spider tray in a 85/86 block if the bolt holes are drilled and tapped for the spider tray...? TIA
But it is possible to use 60°, V6, factory lifters, to save money over the cost of the retro roller lifters. If you have further interest, contact Lionsden.
RACE ON!!!
Thread Starter
Racer
Joined: Nov 2004
Posts: 445
Likes: 0
Originally Posted by CFI-EFI
Nope.
But it is possible to use 60°, V6, factory lifters, to save money over the cost of the retro roller lifters. If you have further interest, contact Lionsden.
RACE ON!!!
But it is possible to use 60°, V6, factory lifters, to save money over the cost of the retro roller lifters. If you have further interest, contact Lionsden.
RACE ON!!!
Is Lionsden a business, a private individual a forum...?
How can I contact it/them..?
TIA
