question on cam lifts and stock rockers

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question on cam lifts and stock rockers #689659 05/05/10 04:59 PM 05/05/10 04:59 PM
Joined: Apr 2003 Posts: 529 MD 7 75dusted OP mopar
75dusted OP mopar 7 Joined: Apr 2003 Posts: 529 MD	On a small block 318 , with the stock rockers and pushrods, how high of lift on a flat tappet hydraulic cam can the stock rockers be used with

Re: question on cam lifts and stock rockers [Re: 75dusted] #689660 05/05/10 05:06 PM 05/05/10 05:06 PM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	up to coil bind spring pressure are what kills stock rocker arms,IMHO I run .485 lift/comp 901-16 springs on a roller cam and all stock valve gear and rockers you can get more with machine work but the rockers still are limeted on spring pressure for a stock 318 head comp 901-16 are a good spring and work well with stock valve gear they are good to .500 lift,IIRC .485 lift and the comp 901 spring has worked good for me on all my stock 318 heads/engines even have a lunati 292/292 bracket cam with .485 lift and comp 901s OH! and if it has rotators on the exhast valves,ditch them for a standerd spring hieght and use 8 intake retainers on them the rotators will not take much lift at all and use a shorter spring height Last edited by scratchnfotraction; 05/05/10 05:15 PM.

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