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Old 01-25-2016, 01:15 AM   #18
Z10
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Join Date: Aug 2012
Location: Midland, TX
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Re: 1970 c20 350 vs Toyota I force 5.7

Quote:
Originally Posted by ironroad9c1 View Post
avoid any gm "Crate" engine , they use poorly cast blocks made in Mexico and are assembled there with poor quality control. find a good seasoned core out of a running truck and rebuild it, almost all used vortec heads I've looked at are cracked at the exhaust valve. they are thin castings
I've had a couple of ZZ4 crate motors which have been made in Mexico, and I've had excellent service from them. I also have other friends with ZZ383, Ram Jet 350, and all of them are performing just fine. Also, the LS7,LS9, & LSX are assembled in the US. Do you have specific GM crate motors that you can reference?

I just don't accept the large net you've thrown over all GM crate motors.

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1969 RS/SS Z10 Camaro Pace coupe
1972 GMC Short Step buildhttp://67-72chevytrucks.com/vboard/s...=1#post6356218
1979 Mazda RX7
1979 Pontiac Trans Am WS6 & 1979 Pontiac Trans Am 10th Anniversary
1999 Honda Valkyrie
2006 Corvette Z06
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