What size are the motor mount bolts for a 350? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

68c10lt1 · 03-22-2009, 02:10 PM

72 truck with a 350 from 84

Thanks

72blue · 04-21-2009, 12:57 AM

mine had 3/8 at the block and 7/16at the crossmember to the mount.

Tx Firefighter · 04-21-2009, 06:15 AM

If you are running later model mounts that have a long through bolt, front to back, I'd buy the proper bolts from GM or a junkyard. The original bolts were somewhat pointed on the end and greatly help ease installation.

03-22-2009, 02:10 PM	#1
68c10lt1 Registered User Join Date: Oct 2008 Location: blanchard, ok Posts: 8	What size are the motor mount bolts for a 350? 72 truck with a 350 from 84 Thanks

04-21-2009, 12:57 AM	#2
72blue Registered User Join Date: Feb 2009 Location: arroyo grande, ca Posts: 206	Re: What size are the motor mount bolts for a 350? mine had 3/8 at the block and 7/16at the crossmember to the mount. __________________ James

04-21-2009, 06:15 AM	#3
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: What size are the motor mount bolts for a 350? If you are running later model mounts that have a long through bolt, front to back, I'd buy the proper bolts from GM or a junkyard. The original bolts were somewhat pointed on the end and greatly help ease installation. __________________ I'm on the Instagram- @Gearhead_Kevin



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