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Web79cc heads work great with stock motors for 88″ to 103″ motors; 89cc heads work best for motors over 103″ or with high-compression pop-up pistons 79cc have 1.940″ intake and 1.575″ exhaust valve and springs … WebUtilizing the original equipment cylinder heads with the valve train components offers a cost-effective boost in performance and torque. Cost Comparison Upgrade your 110 cubic … sharelock postgres
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