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#1
08-15-2024, 03:06 PM
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Edelbrock 5767 springs on 6x heads
I have a set of almost new edelbrock #5767 valve springs that come on many standard edelbrock aluminum RPM heads, they are not the hyd roller springs. Specs on link below.
Trying to determine if these can be used on stock 6x type heads, the ad says they are for "OEM" heads using edelbrock RPM cams, I dont know enough about spring specs or installed height details to know if they can work on 6x heads. The cam would be nothing too big, close to the specs of the rpm cam around .480 lift. https://www.summitracing.com/parts/e...1#applications |
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#2
08-15-2024, 04:58 PM
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No, that 1.830” installed height is for factory ra4 heads.
6X heads with stock length valves(‘exh 4.950”. Int 4.970” ) and a freshen up valve job will have between a 1.568” and a 1.609” installed height with the stock retainer and the .030” thick oil splash shield.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#3
08-15-2024, 05:51 PM
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Kinda what I was thinking, just wanted to be sure before I kept them or put up for sale. Thanks for the info.
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#4
08-15-2024, 06:22 PM
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If you're putting new valves in the 6X heads to replace old heavy original valves you can buy longer valves and use your Eddie springs for a greater lift cam
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If your not at the table you're on the menu A man who falls for everything stands for nothing. |
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#5
08-15-2024, 07:12 PM
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True and then that unfortunately locks you into needing longer push rods also.
__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs! And he was not talking about 1/8 or 1/4 mile ETs! 1) 1940s 100% silver 4 cup tea server set. Two dry rotted 14 x 10 Micky Thompson slicks. 1) un-mailed in gift coupon from a 1972 box of corn flakes. Two pairs of brown leather flip flops, never seen more then 2 mph. Education is what your left with once you forget things! |
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#6
08-15-2024, 07:21 PM
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I have had a couple of Eddy heads that were not 1.800 IH. 1.760
Measure your IH on the Eddy heads. I used "normal" D port length 5.100 Ferrera 5000 series in my 6X-4
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
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