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crank clearances!

Old 07-20-2012, 01:05 AM
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Question crank clearances!

what would be the rod and main bearing clearances for a LS-series engine (5.7L 6.0L, 6.2L, 7.0L, LSX (440 ci))talking about street-strip usage (high perfomance engine) what would be the suggested clearances with a high perfomance LS crank into a high perfomance engine. thanks in advance!
Old 07-20-2012, 02:25 AM
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I run .0025 on the mains and rods, and .003 on the cam.
Old 07-20-2012, 03:46 PM
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Originally Posted by bugy
what would be the rod and main bearing clearances for a LS-series engine (5.7L 6.0L, 6.2L, 7.0L, LSX (440 ci))talking about street-strip usage (high perfomance engine) what would be the suggested clearances with a high perfomance LS crank into a high perfomance engine. thanks in advance!
like above i run .0024-.0026 on rods on the street/strip .0027-.0029 on mains
for race and high pressure/heat like heavy nitrous or FI i run .0027-.0029 on rods and .0029-.0031 on mains......ive had VERY good results running them a hair looser like that on race motors
Old 07-20-2012, 10:54 PM
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Iron or alum block?

Tim
Old 07-21-2012, 12:49 AM
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Originally Posted by Gray86hatch
Iron or alum block?

Tim
iron block all the way sir!


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