Datsun660z Posted March 4, 2003 Share Posted March 4, 2003 That Is The Question? Well anyway here is what I am looking at. The Holley cylinder heads I want are HOLLEY 300-552, They have a 20 degree Valve angle rather than the normal 23 degree angle. "I CAN'T get the search function to tell me what I need to know" What if anything do I need to do to my valve trane to use the 20 degree heads? Thank You. http://www.holley.com/HiOctn/ProdLine/Products/AMS/AMSCH/SBChevy.html Quote Link to comment Share on other sites More sharing options...
Guest greimann Posted March 4, 2003 Share Posted March 4, 2003 The best source of info on this I think would be Holley, but I would guess that you don't need to do anything special except check push rod length. I have a set of the original TFS Twisted Wedge heads that have one valve at 23 and the other at 13 degrees. Because they use guide plates, you need hardened pushrods, but othewise bolt on. Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted March 4, 2003 Share Posted March 4, 2003 ask your question here http://www.chevytalk.org/threads/postlist.php?Cat=&Board=UBB12 DOUG FLYNN who runs this forum,is one of HOLLEYS engineers and has access to all info you need Quote Link to comment Share on other sites More sharing options...
grumpyvette Posted March 4, 2003 Share Posted March 4, 2003 well I see you took my advise and asked DOUG FLYNN, BTW for those that don,t get around much the answer is the HOLLEY 20 degree heads use stock 23 degree valve train parts Quote Link to comment Share on other sites More sharing options...
Datsun660z Posted March 5, 2003 Author Share Posted March 5, 2003 Thank You grumpyvette You Were right Doug Answerd my ?? Very quiclkly Quote Link to comment Share on other sites More sharing options...
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