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GORDON HUMMEL · 07-21-2009, 07:18 PM

I happened to be checking somethings in the RH engine compartment & noticed a tag on the RH valve cover. Among other things it listed "designed" HP 450. I could have bet I had read it had 500. Went to the other side & the LH valve cover tag stated "adv" HP 500. I now suspect I have 450, but what does this mean, or has someone changed a valve cover ?

07-21-2009, 07:18 PM	#1
GORDON HUMMEL Senior Member Join Date: Mar 2008 Location: Forest Ranch, Ca for the summer Posts: 299	How much Horsepower ? I happened to be checking somethings in the RH engine compartment & noticed a tag on the RH valve cover. Among other things it listed "designed" HP 450. I could have bet I had read it had 500. Went to the other side & the LH valve cover tag stated "adv" HP 500. I now suspect I have 450, but what does this mean, or has someone changed a valve cover ? __________________ Gordon Hummel 1991 41.5' #266 8v92 2009 Pontiac Vibe GT Toad Fulltime on the road