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Chevy Small Block 4.9L-5.7L/302-350 Cubic Inch; 4.125 Inch Bore; 0.039 Inch Head Gasket Compressed Thickness; 1.28 Inch x 2.09 Inch Intake Port; 0.060 Inch Thick Intake Gasket; 1.50 Inch x 1.50 Inch Exhaust Port; 5/16 Inch Thick Valve Cover

Ford Windsor Small Block 4.7L-5.8L/ 289-351 Cubic Inch; 4.100 Inch Bore; 0.047 Inch Head Gasket Compressed Thickness; 1.20 Inch x 2.00 Inch Intake Port; 0.060 Inch Thick Intake Gasket; 1.25 Inch x 1.48 Inch Exhaust Port; 5/16 Inch Thick Val

Pontiac V-8 5.3L-7.5L/326-455 Cubic Inch; 4.300 Inch Bore; 0.038 Inch Head Gasket Compressed Thickness; 1.18 Inch x 2.20 Inch Intake Port; 0.060 Inch Thick Intake Gasket; 1.880 Inch Exhaust Port; 3/16 Inch Thick Valve Cover Gasket; With 2 C