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#1 |
Registered User
Join Date: Jan 2004
Location: Kansas City
Posts: 40
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454 Question
I have a 86 C20 Heavy Duty truck with the 454 and turbo 400. My question is when do you know you should rebuild the motor? Let me explain the tranny is going to be rebuilt in the very near future. But the motor has 175K on the odometer and the previous owner did not know if it was previously rebuilt or not. It is leaking oil from everywhere especially the Rear main seal and oil Pan but it doesn't smoke at startup or under load no strange noises from it. It seems to hold good oil pressure. So my question would it be better to pull the motor and tranny as one and then look over the motor and freshen up with new gaskets, timing chain, maybe get a valve job done on it or take the block in and have it checked out. What does a basic rebuild cost on the 454 if I had them do basic machine work and put the crank in and pistons and the cam bearings and I do the rest? Just looking for advice
Thanks Larry
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Larry 1986 3/4 Chevy Truck 454 2005 Z71 Tahoe 2002 Pontiac Trans Am WS6 |
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#2 |
Registered User
Join Date: Oct 2007
Location: Alberta
Posts: 117
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Re: 454 Question
My opinion is to do the engine at the same time as the tranny, especially if its leaking oil like that, and that amount of miles. Plus the odometer could've rolled once already.
Even if you decide the overhaul isnt worth it, you should think about getting it checked and all the gaskets checked and replaced if necessary. Better safe than sorry. Good luck, Wes
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Wes 1980 GMC Sierra SCSB-2WD 1986 Chevrolet C10 SCSB-2WD |
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#3 |
Registered User
Join Date: May 2007
Location: ALTON, IL.
Posts: 98
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Re: 454 Question
hell yea, go ahead and make it a project. maybe some new goodies like a cam and intake??
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#4 |
Registered User
Join Date: Feb 2008
Location: Leavenworth Ks.
Posts: 43
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Re: 454 Question
I'd say...
pull the engine out, take it apart and meaure everything. Rering and bearing everything. Thow in a good set of Fel pro gaskets and a little cam for fun.
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![]() ![]() 68 GMC SHORT STEP 35 CHEVY PICKUP A FEW BIKES SINNERS C.C. |
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