Finalising build on 400 CI dart SHP PRO SBC, cam clearance in my opinion is too large at .003" .
Cam bores measure perfect at 2.120", solid roller journals all 1.9483" , cam clearance checked with precision go plug gauge dia. of 1.9513"
Dart spec sheet specifies cam journal dia. at 1.949" ! whereas BB cam journal is 1.948" nominal, when trial fitting cam I could tell it was way too loose for my liking.
I cant find any .001 undersize bearings for this application, I have contacted Dart, waiting for response.
All other Dart blocks ive built have had close to .002" cam clearance with the Durabond bearings supplied with the block.
Dart SHP cam bearing clearance
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