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Old 08-04-2009, 11:31 PM   #1
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Pushrod Question!!??

i have a 1990 Rs with a L03 Tbi, i am putting in a cam and lifters, i have roller lifters now and am putting regular lifters in with the new cam, the only problem is that my stock lifters are longer than the new ones so my concern is the pushrods not being long enough, to solve the problem I should just put longer pushrods in right?? Does anyone know what vehicle to get the pushrods for please let me know
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Old 08-05-2009, 01:59 PM   #2
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My first recommendation would be to send the cam and lifters you bought back. It is a downgrade to go from roller to flat tappet lifters.

Get a similar OEM-style roller lifter cam. You can reuse your lifters and pushrods. It's a better set-up. The cam might cost a little more, but you won't need new lifters or pushrods.

Or, keep your downgrade cam and get pushrods for '86-earlier SBC. '87-'95 trucks also used the longer pushrods, because they had flat tappet cams.
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Old 08-05-2009, 06:17 PM   #3
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Re: Pushrod Question!!??

Quote:
Originally Posted by five7kid View Post
My first recommendation would be to send the cam and lifters you bought back. It is a downgrade to go from roller to flat tappet lifters.

Get a similar OEM-style roller lifter cam. You can reuse your lifters and pushrods. It's a better set-up. The cam might cost a little more, but you won't need new lifters or pushrods.

Or, keep your downgrade cam and get pushrods for '86-earlier SBC. '87-'95 trucks also used the longer pushrods, because they had flat tappet cams.
Thank you very much for your response can you tell me what size a the 86 and earlier pushrods are beacuse on summit they have many different sizes of pushrod
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Old 08-05-2009, 09:05 PM   #4
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Re: Pushrod Question!!??

stock length are 7.800 and 5/16" diameter.
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Old 08-05-2009, 09:05 PM
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