454 motor mounts - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hahaudriveachevy · 08-15-2009, 04:23 PM

will 73-87 motor mounts work on a 65 gmc that im trying to put a 454 into

protrash64 · 08-15-2009, 09:36 PM

Yes...but you will most likely have to notch the frame rails back roughly 1/2'' or so to accomodate the correct angle. Very similar to the 67-72 frame with the factory relief for motor mounts. May have to drill a hole for the bottom of the mount on the x-member.

**Captainfab** · 08-15-2009, 11:54 PM

Yes they will work. I would trim the top frame flange back a 1/2 inch or so starting in front of the motor mount brackets, going rearward and tapering off to nothing back past the bellhousing a little. I usually use a '73-'87 frame for reference. This will give you the extra needed room for either exhaust manifolds or headers. Also if you plan on running taller than stock valve covers, you will need to move the engine forward a couple of inches from the stock location. Otherwise you will need to modify the firewall to accomodate them.

hahaudriveachevy · 08-16-2009, 12:38 AM

thanks would the cpp motor mounts be easier to use

**Captainfab** · 08-17-2009, 12:03 AM

I've never used them, but I think you still have to trim the top flange of the frame to use them.

hahaudriveachevy · 08-17-2009, 09:28 PM

i think im going to try the ones from the brothers catalog http://www.brotherstrucks.com/prodin...number=ESM6372

08-15-2009, 04:23 PM	#1
hahaudriveachevy Registered User Join Date: Jul 2009 Location: Rio Rancho New Mexico Posts: 15	454 motor mounts will 73-87 motor mounts work on a 65 gmc that im trying to put a 454 into __________________ 1965 gmc Last edited by hahaudriveachevy; 08-15-2009 at 04:25 PM.

08-15-2009, 09:36 PM	#2
protrash64 Resistance is Futile Join Date: Dec 2006 Location: Mesa,Arizona Posts: 3,520	Re: 454 motor mounts Yes...but you will most likely have to notch the frame rails back roughly 1/2'' or so to accomodate the correct angle. Very similar to the 67-72 frame with the factory relief for motor mounts. May have to drill a hole for the bottom of the mount on the x-member. __________________ 64 CHEVY PICK-UP > http://67-72chevytrucks.com/vboard/s...otrash+re-hash 64 CARRYALL >http://67-72chevytrucks.com/vboard/s...=1964+suburban 66 LB >http://67-72chevytrucks.com/vboard/s...d.php?t=427852 STRENGTH/DETERMINATION/MERCILESS/FOREVER .......posted via stationary device

08-15-2009, 11:54 PM	#3
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: 454 motor mounts Yes they will work. I would trim the top frame flange back a 1/2 inch or so starting in front of the motor mount brackets, going rearward and tapering off to nothing back past the bellhousing a little. I usually use a '73-'87 frame for reference. This will give you the extra needed room for either exhaust manifolds or headers. Also if you plan on running taller than stock valve covers, you will need to move the engine forward a couple of inches from the stock location. Otherwise you will need to modify the firewall to accomodate them. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

08-16-2009, 12:38 AM	#4
hahaudriveachevy Registered User Join Date: Jul 2009 Location: Rio Rancho New Mexico Posts: 15	Re: 454 motor mounts thanks would the cpp motor mounts be easier to use __________________ 1965 gmc

08-17-2009, 12:03 AM	#5
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: 454 motor mounts I've never used them, but I think you still have to trim the top flange of the frame to use them. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

08-17-2009, 09:28 PM	#6
hahaudriveachevy Registered User Join Date: Jul 2009 Location: Rio Rancho New Mexico Posts: 15	Re: 454 motor mounts i think im going to try the ones from the brothers catalog http://www.brotherstrucks.com/prodin...number=ESM6372 __________________ 1965 gmc Last edited by hahaudriveachevy; 08-17-2009 at 09:35 PM.



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