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Roller Lifters with a Street Torque Cam ?

The original owner of "Ole Reliable" was here ploughing snow today (he used to be a partner in a performance shop back when he bought the car) and I was telling him that I had received a "Street Torque" cam for Xmas. We got talking about installation valve train etc. and he suggested looking into installing it with roller lifters. For those of you who don't know, the engine is a Canadian B20E 1974 version with dual SU HS6 carbs.... it is an 8 bolt flywheel block. The head has been redone with guides and hardened seats installed. This year will see the bottom end getting the treatment ... depending on how much wear is evident it will definately get new rings and bearings if we can get away with just a hone job we will ..... The Cam will be installed at that time with new cam bearings etc..

OK so has anyone ever heard of using roller lifters in this setup? What pushrods were used? Is it worth doing ?
--
Brett Sutherland & the 1.5 million mile 122 Canadian Old VOLVOS never die ....... They just become 'COOL'!!!








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Roller Lifters with a Street Torque Cam ?

Roller lifter camshafts are ground with different profiles than those that are designed to run flat tappets. Having converted a couple of american V8s to roller lifters, I can tell you that it is not a drop in conversion in those engines. I do not know whether there is anyone that makes a roller cam/lifter setup for Volvos. Roller lifters are longer than regular lifters and require some sort of retainer to keep them from rotating. There are some very real benefits from using roller lifters, reduced friction and the ability to use more aggresive cam profiles being the main ones. Maybe someone out there has something that will work in a B20. Good luck,rcs








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Roller Lifters with a Street Torque Cam ?

That's exactly what I thought ... guess he was "full of it" again :-) Thanks all.
--
Brett Sutherland & the 1.5 million mile 122 Canadian Old VOLVOS never die ....... They just become 'COOL'!!!








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Roller Lifters with a Street Torque Cam ?

Roller lifters require a special cam because the lift geometry depends on
the location of the flat on the bottom of the lifter. A roller lifter cam
looks incredibly extreme compared to a regular cam because of that.

So if you insist on roller lifters, you'd better get the right cam to go with
them.
--
George Downs, Bartlesville, Oklahoma, Central US







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