Luhn Performance made 863 HP HP at 5300 rpm driving a belt driven supercharger at 13.5 psi of boost. The main caps were moving on the block, Fretting, and was apparent on teardown.
With a Turbo that combination could have been over 900 HP easily at 13 psi of boost.
Very easy to make the power. Much harder to keep the boost down so that the block will survive. But it has been done by different people on the street.
If you can afford it buy a good block and good crank, rods, and pistons.
Tom V.
When Marty ran his 406 cid engine, the only block out there was a original Dick Duclow block and Dick only had 50 made.
Marty stayed with a stock 67 400 block with mods. It lasted 3 years at 40+ psi of boost. All factory blocks will fail under boost at some point. Just like stock Ford and Chevy blocks do.
Tom V.
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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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