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Old 08-04-2014, 12:22 PM   #1
amfmchevy
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Location: Lansing Michigan
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motor mounts

New dude here, looking to replace my 4.3 with a 5.7 in my 1997 c1500 2 wd. Question is will the 4.3 motor mounts on the frame work with the 5.7? Thanks Have every thing else I need
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Old 08-04-2014, 04:44 PM   #2
Mr_Rich
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Re: motor mounts

You need mounts similar to these. The 4.3L has brackets mounting the engine further back in the engine compartment.
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1989 K1500 Chev. EC
Original owner; some of the aftermarket parts I've installed are Borla headers, Hypertech chip, Edelbrock water pump, and a Stillen rear disc brake conversion kit.
2009 Hummer H3T 3.7L 5M (sold)
1997 K2500 Chev. EC 7.4L/ 4L80E (sold)
2018 Dodge Ram 2500 HD R/C
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Old 08-04-2014, 06:20 PM   #3
amfmchevy
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Re: motor mounts

Thanks for the quick reply, Are those aftermarket? or new from a c1500 that came with a 5.7.
Thanks again
Mark H.
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Old 08-05-2014, 01:43 PM   #4
Mr_Rich
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Re: motor mounts

Those are poly inserts in the original motor mount shells that are painted with silver POR-15; so yes, aftermarket.
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1989 K1500 Chev. EC
Original owner; some of the aftermarket parts I've installed are Borla headers, Hypertech chip, Edelbrock water pump, and a Stillen rear disc brake conversion kit.
2009 Hummer H3T 3.7L 5M (sold)
1997 K2500 Chev. EC 7.4L/ 4L80E (sold)
2018 Dodge Ram 2500 HD R/C
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