1970 c20 350 vs Toyota I force 5.7 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ironroad9c1 · 01-24-2016, 08:07 PM

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

Z10 · 01-25-2016, 01:15 AM

Quote:

Originally Posted by ironroad9c1

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.

01-24-2016, 08:07 PM	#1
ironroad9c1 Master Hater Join Date: Apr 2006 Location: Temple,Tx. Posts: 402	Re: 1970 c20 350 vs Toyota I force 5.7 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 __________________ 1997 C1500 ECSB 4.3/NV3500 8.5 3.42 "This evening, all of you bleeding hearts... why don't just go ahead and hug yourself for the next 20 minutes or so, because there's a really good chance you're gonna be offended".- Captain Owen Honors



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