Thread: 70 429CJ Buildup Questions
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04-17-2011 09:12 PM #8
Valve Spring recommendation for D0OE-R CJ Heads
I finally got the short block together and have the cam as recommended by Golen and UltraDyne. Specs are as follows:
Cam: UltraDyne
316000 S56161
FF288/296-10H
Dur@050 Int 231 Exh 239
Lift Int 559 Exh 585
The heads are D0OE-R CJ Cast iron heads with the stock rockers. I'm assuming that the stock springs will need to be updated for this cam but am not sure how to calculate what springs I need. Any help would be greatly appreciated.





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