Quote:
Originally Posted by Gray Ghost
I never rebuild part of any motor, it's a recipe for disaster.
As far as crate motors go....save a ton of cash contact a local builder to rebuild your motor. You can also usually come out way ahead HP and torque wise over what GM offers.
I ordered a GM 350 HO with roller cam and roller timing chain [350hp] back in 2000 and wound up being very disappointed with the power. The engine alone cost me $2850 back then and my locally built El Camino SS's motor [325 hp according to the PO] with a 3.08 posi would run circles around the Monte Carlo SS with it's 3.73. That was my last crate motor. I have had two built for that same $2850 since [in two different trucks].
Another local guy had a ZZ4 in his C-10...spent $4200 on that one and while it was a good running truck, no one else in the club thought it ran good enough to warrant the price or the hype the crates get.
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Mr. "Old Skool" here,
Mr. Ghost is correct.
Never rebuild part of a motor.
If you just do the top end, you'll just end up beating the crap out of the bottom end/bearings because of the "new" compression.
Do it all, or do none.
As for oil on the spark plug threads, you'll find that on all of my vehicles. I put a little oil on the threads to lubricate them before installation.
Personally, I'd do a full electric tune up & run it.
Then in a few thousand miles I'd pull the plugs & "read" them.
If they're "oily", it could very well be time for an overhaul.
If they're just "sooty", start looking @ the fuel system, or maybe you need a hotter plug because of your particular driving habits.
And, just as an aside, I love building motors. Just don't get to do it often enough.
I hoped this helped a bit.
El Jay