They are good for hydraulic or solid lift cams Step 1.060 Nose 0.695 Valve size 3/8" retainers needed: 7 degree Construction: chrome moly steel They work well with factory or aftermarket heads. We've used these on our racecars for years. They are manufactured by Precision. They perform well into the low 11's in the quarter! And the best part is US shipping is FREE! So, don't delay:
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