what needed for gm847
09-19-2005, 08:05 PM
#2
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Join Date: Dec 2002
Location: Wilm, DE
Posts: 457
Re: what needed for gm847
valve springs (k-800's are good), timing chain (id go double roller so u have to get a elec water pump as well), and of course headers and exhaust. Heads deff help but are not needed. im sure others will jump in with more info as it is a very popular cam
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