Motor/engine mount question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rchavez101 · 06-29-2012, 02:10 PM

I am gathering my parts for my engine swap on my 94 with a 4.3 liter to a 5.7 liter. Can someone give me a link to the engine/frame mounts that I would need? I have looked but all I can come up with are the rubber mounts. I am assuming that one of the mounts is the steel/rubber part and the other is steel (cradle). Thanks in advance for your help.

jchav62 · 06-29-2012, 04:00 PM

I think the ones are your 4.3 will bolt onto the 350. I'm not 100% sure, but I would try if I were you.

rchavez101 · 06-30-2012, 12:14 PM

Thanks Joe. Its good to see someone local and on top of that a Chavez as well.

I went to Autozone and asked to see the motor mounts for the 4.3 and 5.7 liter engines. Sure enough they are different. It shows that the rubber mount goes on the frame for the 5.7 liter. The only part that I am unsure of is the part that is attached to the engine I believe some call it the cradle. I am hoping that the one that is on the 5.7 currently will fit over the new mounts. The 5.7 liter is a Gen 1 block.

**Mr_Rich** · 06-30-2012, 01:59 PM

I would call it a bracket vs. a mount so as not to get the two confused. Obviously, these are the mounts...

rchavez101 · 06-30-2012, 02:56 PM

Quote:

Originally Posted by Mr_Rich

I would call it a bracket vs. a mount so as not to get the two confused. Obviously, these are the mounts...

Thanks Mr. Rich. Now i need to see if the part on the engine will fit around the mounts.
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**Mr_Rich** · 06-30-2012, 05:37 PM

You need brackets like this. On each side of the engine brackets are braces/ brackets that tie in to the bellhousing on a 4WD. A trans for a 4WD has additional bracing that a 2WD doesn't use. A 2WD may need a spacer in place of the brackets on each side that I've shown.

06-29-2012, 02:10 PM	#1
rchavez101 Registered User Join Date: Jun 2011 Location: Rio Rancho NM Posts: 503	Motor/engine mount question I am gathering my parts for my engine swap on my 94 with a 4.3 liter to a 5.7 liter. Can someone give me a link to the engine/frame mounts that I would need? I have looked but all I can come up with are the rubber mounts. I am assuming that one of the mounts is the steel/rubber part and the other is steel (cradle). Thanks in advance for your help. __________________ 94 Chevy SWB in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=477390

06-29-2012, 04:00 PM	#2
jchav62 1962 C-10 Join Date: Apr 2005 Location: Las Vegas, New Mexico Posts: 4,978	Re: Motor/engine mount question I think the ones are your 4.3 will bolt onto the 350. I'm not 100% sure, but I would try if I were you. __________________ Joseph Chavez "See the USA in a Chevrolet!!" ......................_____ .........________//__{\_____ ,,,,,,,/__(O)___//___/__(O)_/ 1962 C10 Shortbed Fleetside 327/th350 GV overdrive 1974 C10 Longbed Fleetside 350/th350 "The Trash Truck" 1999 Chevy 2500 OBS, Longbed 5.7/4L80E 4x4 2015 GMC Sierra SLE 1500 4x4

06-30-2012, 12:14 PM	#3
rchavez101 Registered User Join Date: Jun 2011 Location: Rio Rancho NM Posts: 503	Re: Motor/engine mount question Thanks Joe. Its good to see someone local and on top of that a Chavez as well. I went to Autozone and asked to see the motor mounts for the 4.3 and 5.7 liter engines. Sure enough they are different. It shows that the rubber mount goes on the frame for the 5.7 liter. The only part that I am unsure of is the part that is attached to the engine I believe some call it the cradle. I am hoping that the one that is on the 5.7 currently will fit over the new mounts. The 5.7 liter is a Gen 1 block. __________________ 94 Chevy SWB in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=477390

06-30-2012, 01:59 PM	#4
Mr_Rich Registered User Join Date: May 2006 Location: Yucaipa, Calif. Posts: 795	Re: Motor/engine mount question I would call it a bracket vs. a mount so as not to get the two confused. Obviously, these are the mounts... Attached Images __________________ 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

06-30-2012, 05:37 PM	#6
Mr_Rich Registered User Join Date: May 2006 Location: Yucaipa, Calif. Posts: 795	Re: Motor/engine mount question You need brackets like this. On each side of the engine brackets are braces/ brackets that tie in to the bellhousing on a 4WD. A trans for a 4WD has additional bracing that a 2WD doesn't use. A 2WD may need a spacer in place of the brackets on each side that I've shown. Attached Images __________________ 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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