09-05-2003, 05:00 PM
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CC Member
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Join Date: Jun 2001
Location: Washington DC Metro (Virginia),
VA
Cobra Make, Engine: Classic Roadsters, Tweaked 351W, T-5Z, CRII Tech Support Team.
Posts: 1,895
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Not Ranked
Think factory 351W roller blocks were made from '93 - '95 when the W engines were discontinued.
However, all the major cam grinders make retrofit roller cams to fit any year block. Comp uses standard roller lifters and a smaller base circle cam. Crane uses shorter lifters, and a standard base circle cam. All use the standard spider to hold the lifters in place.
When retrofitting a non-roller block for a roller cam, some machine work might be necessary on the block to properly fit the spider, and clearance the back of the lifter galley for lifter and bar clearance.
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351 Block Question
Linear Mode
