12-01-2008, 01:07 PM
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CC Member
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Join Date: Jan 2005
Location: Hillsboro,
OR
Cobra Make, Engine: Scratch built CSX style frame, Carbon fiber body, 393 Stroker, T-bird IRS, T5
Posts: 1,623
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Not Ranked
Don,
With a non roller block, you can use the link type lifters but the cost is pretty high. You can also use the original style Ford rollers and dog bones in a non roller block by drilling/tapping the holes in the block for the hold-down spider and grinding a very small amount off the valley around the lifter bores (in just a couple locations) so the dogbones will sit flat. Once that is done, you can use original style roller lifters, which are great lifters for around $100 for a full set brand new from Ford. Your engine builder should know how to do this if he has experience with Ford small blocks.
If you want to know which cams in the Comp Cams lineup are retrofit cams, just give them a call and talk to a tech. I'm sure the 284 XR and 292 XR are retrofit cams. I may have typed XE which is their Extreme Energy line instead of their XR, which is their Extreme Energy Retrofit line.
The Retrofit cams have a smaller base circle to accomodate rollers in a non-roller block.
The heads sound very nice. I've heard good things about the Pro Topline heads. Actually, they flow just about the same as the Vic JR.'s out of the box. But your price is great so good shopping job.
Looks like you are just a cam away from your target. Take a good look at getting a road race pan for that engine if you intend on doing any track time.
Bob
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