vortec engine question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jamal · 07-10-2005, 12:40 AM

I posted this in the 88-98 board as well, but I know a few of you guys run late model engines and may be able to help me out. I am putting a four bolt main pre-86 block into my 98 model z71 with a blown engine. I am planning on putting the heads and fuel injection on the pre-86 motor. I was told the 98 harmonic balancer would not work on the older engine. If this is true will the old style harmonic balancer line my pulleys up correctly? Will the flexplate from a th350 work for the 4l80e? I was told the 98 flexplate would not work. Also will the front cover/crank sensor bolt up to my block. Any other problems I may run into?

07-10-2005, 12:40 AM	#1
jamal Registered User Join Date: Apr 2005 Location: Bridgeport, AL Posts: 363	vortec engine question I posted this in the 88-98 board as well, but I know a few of you guys run late model engines and may be able to help me out. I am putting a four bolt main pre-86 block into my 98 model z71 with a blown engine. I am planning on putting the heads and fuel injection on the pre-86 motor. I was told the 98 harmonic balancer would not work on the older engine. If this is true will the old style harmonic balancer line my pulleys up correctly? Will the flexplate from a th350 work for the 4l80e? I was told the 98 flexplate would not work. Also will the front cover/crank sensor bolt up to my block. Any other problems I may run into? __________________ 67 chevy stepside, 6 cylinder, three on the tree, small window. Currently in resto.



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