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11-16-2011, 01:39 AM
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Registered User
 
Join Date: Feb 2009
Location: Scottsdale, AZ
Posts: 390
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Help in ID'ing this '87+ 5.7 year engine pls.
Prior, prior owner yanked the original I6 out of this '80 K20, and put this later model 350 in. I put the intake manfold on, thinking it was around 1990ish heads. I'm want to order some Hedmans for it, and was wondering what the year range it might be. When did the exhaust ports change from oval to rectangle?
Thanks!
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-Don- '66  C10 w/factory A/C'77 Cheyenne K5 350/465/205 '80 Custom Deluxe K20 350/465/205'04 Denali XL '05 DMax CCLB 4x Have a Hickey Sidewinder Winch and need the owners/install manual? Send me a PM with your email address and I'll forward you a .pdf 
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