351W with roller cam

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Oct 11, 2008 | 12:52 AM

Tim Young

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From: North Central Washington

351W with roller cam

Just curious if any one is running a roller cam in there 351w with EFI?

Oct 12, 2008 | 01:05 PM

Tim Young

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From: North Central Washington

I should have asked if anyone was running a roller cam in an older 1987 351w with EFI?

I thought about it, but the cost is pretty high and the fact that it is going to be a low RPM motor I don't think there would be much if any benefit, other then the cool factor.

Just curious what some of you guys think that have been doing this for a while?

The reason I ask about the 351w with EFI is that for the 1987 it would be a retrofit cam and I'm not sure if anyone grinds a retrofit for use with EFI.

Oct 12, 2008 | 01:33 PM

Conanski

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From: Ottawa, Ontario

You don't have to use the retrofit cams actually you can use any of the regular roller cams for a 5.0 or 5.8 roller motor, you just can't use the OEM roller lifters with the spider and dogbones assembly, you have to use the more expensive link-bar roller lifters. The cost of all that is what turned me off when I built my '85 351.. and the fact that there's not much difference in power for all that expense.

Oct 13, 2008 | 12:07 AM

Tim Young

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From: North Central Washington

Thanks Paul,

I didn't realize about the cam and lifter setup. The stock roller lifter must be taller then the aftermarket ones or at least set higher in the block. So then is the later blocks must be cast a little taller where the lifters are to accommodate the stock roller lifter? When I was checking on cam shafts I seen that the retrofit cams had a smaller base circle.

Any way I'm going to stick with the flat tappet cam, I was just curious.

Thanks again
Tim