motor mount I.D. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mikegi · 07-02-2002, 06:43 PM

what are these motor mounts off of? i don't have a clue

Longhorn Man · 07-02-2002, 08:26 PM

Looks alot like my 72 big block mounts to me. Although, I am not sure if they had the newer style clamshell mounts by then...

mikegi · 07-02-2002, 08:47 PM

i'm not to familiar with these,but i did buy a bunch of stuff off a guy all 71-72 related

**72BBGMC** · 07-02-2002, 08:58 PM

They are 73 and up frame mounts, they look alot like the 72 BB frame mounts but are different. The motor mounts and engine cups are the same as the 72 style BB.

*Fast68Chevy* · 07-02-2002, 10:22 PM

yeah 72 ones dont have perfectly square upper corners on the top of it where it rests on top of frame rail where the two bolts go in., are VERY similar to 73-up ones such as those in the pic above, someone who hasnt seen pairs of both probably wouldnt even realize the differences, most likely,
also 73-up BB ones are about 1/2" shorter than 73-up SB ones., still square upper corners though, i have some of both here, no 72 ones though,

good luck

**Desert Rat** · 07-03-2002, 01:35 PM

Ill back that up.those are 73 up.i parted 2 73 454 trucks at same time.a 1/2 ton SWB and a 73 3/4 454 both factory bb trucks according to option sheets.the 1/2 ton and 3/4 ton were different length.i cleaned up the 1/2 ton set and painted to put in my factory small block 79 Blazer 2wd.and the BB and SB towers were identical so i didnt bother to change.also the rubber mounts are same as the 72 only towers SB and BB along with the to the motor clamshells.The 72 towers the top 2 bolt holes are like 2" apart.I have a set,but for sale,a board member wanted,but no $$$ yet,its been sufficent time.

07-02-2002, 06:43 PM	#1
mikegi Registered User Join Date: Jun 2000 Location: Springvale,Maine Posts: 201	motor mount I.D. what are these motor mounts off of? i don't have a clue Attached Images __________________ Springvale,Maine 71 3/4 GMC lwb

07-02-2002, 08:47 PM	#3
mikegi Registered User Join Date: Jun 2000 Location: Springvale,Maine Posts: 201	i'm not to familiar with these,but i did buy a bunch of stuff off a guy all 71-72 related __________________ Springvale,Maine 71 3/4 GMC lwb

07-02-2002, 08:58 PM	#4
72BBGMC Senior Member Join Date: Jun 2000 Location: georgia Posts: 292	mounts They are 73 and up frame mounts, they look alot like the 72 BB frame mounts but are different. The motor mounts and engine cups are the same as the 72 style BB.

07-02-2002, 10:22 PM	#5
Fast68Chevy Account Suspended Join Date: May 2000 Location: IL Posts: 0	yeah 72 ones dont have perfectly square upper corners on the top of it where it rests on top of frame rail where the two bolts go in., are VERY similar to 73-up ones such as those in the pic above, someone who hasnt seen pairs of both probably wouldnt even realize the differences, most likely, also 73-up BB ones are about 1/2" shorter than 73-up SB ones., still square upper corners though, i have some of both here, no 72 ones though, good luck Last edited by Fast68Chevy; 07-02-2002 at 10:25 PM.

07-02-2002, 08:26 PM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Looks alot like my 72 big block mounts to me. Although, I am not sure if they had the newer style clamshell mounts by then...

07-03-2002, 01:35 PM	#6
Desert Rat Senior Member Join Date: Dec 1999 Location: Darrington, Washington Posts: 3,963	Ill back that up.those are 73 up.i parted 2 73 454 trucks at same time.a 1/2 ton SWB and a 73 3/4 454 both factory bb trucks according to option sheets.the 1/2 ton and 3/4 ton were different length.i cleaned up the 1/2 ton set and painted to put in my factory small block 79 Blazer 2wd.and the BB and SB towers were identical so i didnt bother to change.also the rubber mounts are same as the 72 only towers SB and BB along with the to the motor clamshells.The 72 towers the top 2 bolt holes are like 2" apart.I have a set,but for sale,a board member wanted,but no $$$ yet,its been sufficent time.



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