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509" Lobe separation angle 107°
These heads will work best with a primary operating range of 3000-7000 rpm's (This range is an average and will vary with engine displacement as well as component selection)
Replacement 1
Required to install CalTracs with Calvert Springs certain applications
Gilmer Alternator Pulley - BlackSuit Holden 304 EFI Kit
Spring I.D Locator Set 1.550" O.D CO4777-16 Trans Pans & Gaskets 509" Lobe separation angle 107°Spring I. D Locator Set 1. 550" O. D. 060" Thickness CO4777 16 4777 16 COMP Cams Spring ID Locators will not only protect the head and shim, but also locate and hold the spring in place. Previously, this part has been available only in a cup form with the retaining portion being on the outside of the part. This required that the head be machined a great deal to accept this cup. A new I. D. locator with the locating shoulder on the inside is now
US$ 64.99
US$ 65.00
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US$ 6000.00
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