After waiting 500 miles to ensure the clutch was bed in the new 383 hit the dyno. This build was designed around a long flat torque band not peak power. Final numbers were 475 horse power & 431 peak torque. Note the 400 ft.lbs by 3,000 rpm.

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This 97 240sx has been by current project since 2007. The LS1 swap was originally finished in 2008. Engine specs: 2002 ls1 block, 383 CI, 11.1:1 compression Eagle forged 4″ stroke crank Eagle 6.125″ Rods Manley -4cc pistons with coated skirts Ackerly and Child extreme piston rings ARP 2000 rod bolts ARP Main studs ARP…

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