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6=8 Clifford Performance
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(207)291-4155 U.S. ARMY VET OWNED & OPERATED!

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Jeep 258/4.0

Click here for Jeep/AMC upgrades

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Ford 223

Click here for Ford 215/223

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Chevy 235/261

Click here for Chevy 216/235/261

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GMC 270/302

Click here for GMC 270/302

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Mopar 225

Click here for Mopar 170/225

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Chevy 250/292

Click here for Chevy 194/230/250/292

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Ford 240/300

Jack Clifford with all of his many trophies. He said he never lost a race, but there could have been one..

The Prized Trophies

Clifford Performance manufactures performance products for Ford, Chevy, Mopar, AMC, Jeep, which has outperformed all the V8 for years.. We continue to bring you the best possible products to upgrade your Inline Six

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