67-72 Chevy motor mount placement - The 1947 - Present Chevrolet & GMC Truck Message Board Network

painteralg · 01-27-2005, 04:20 PM

Hello,

I'm new to the site, currently restoring a 69 SWB prostreet truck and I have installed the new 383 stroker and it seems to sit too far forward on the frame. I know there are two positions for the motor frame mounts front and a back. But I looked at moving the motor frame mounts to the back position but the lower bolt doesnâ€™t line up with a pre drilled hole on the cross member. Please help.

**CPNE** · 01-27-2005, 04:36 PM

I beleive you need the I6 stands in order to get the bolt holes to line up

painteralg · 01-27-2005, 04:48 PM

Thank you. I also hear somewhere that the first spark plug hole should be inline with the swing arm tie rod. Is that correct?

**CPNE** · 01-27-2005, 04:54 PM

Quote:

Originally Posted by painteralg

Thank you. I also hear somewhere that the first spark plug hole should be inline with the swing arm tie rod. Is that correct?

That I can't answer. There are a bunch of people who have relocated their small block. Someone will chime in soon

67ChevyRedneck · 01-27-2005, 04:57 PM

If you are currently using the "forward" set of holes, those were the "original" V-8 mount locations for the 327 and 350. Like CPNE said, if you want it to sit back farther use I6 stands. How far is your fan from the radiator now? Newer V-8's water pumps are longer than the original pumps, maybe that's why your motor "appears" to be too far forward. my $.02

krue · 01-27-2005, 05:06 PM

Welcome to the board from South Mississippi! Check out our FAQ page for some good info! It's board rules to post pics of your ride, no matter what shape it's in!

painteralg · 01-27-2005, 05:09 PM

The radiator (4 core) sits ~2-3 inches from the fan. So by using the front mounting holes I should be fine? No handling issue?

67ChevyRedneck · 01-27-2005, 05:13 PM

My truck has a rebuilt '78 350 motor in it with the "long" water pump. It also sit's 2-3 inches from the radiator. I haven't had any overheating problems or handling problems at all. The truck is parked now 'cause of a blown 700R4, but I put 6,000 miles on the new motor with no problems....hope that helps ya. Have you tried to bolt the tranny up yet? If it is in and fits well, I'd leave her alone...Anyone else???

painteralg · 01-27-2005, 05:30 PM

Yea, the motor and tranny are in, along with the driveline. The driveline yoke sticks out of the tranny about 2 inches, when connected to the narrowed 12 bolt. My setup just looks different then some other trucks Iâ€™ve seen. I also replaced the entire short water pump/accessories with a long water pump and according pulleys and brackets.

Thanks again for all your help.

painteralg · 01-27-2005, 05:31 PM

Quote:

Originally Posted by krue

Welcome to the board from South Mississippi! Check out our FAQ page for some good info! It's board rules to post pics of your ride, no matter what shape it's in!

Thank you, Krue

Tx Firefighter · 01-27-2005, 06:36 PM

Quote:

Originally Posted by painteralg

I also replaced the entire short water pump/accessories with a long water pump and according pulleys and brackets.

That's why it seems so close. If you used the origianl short pump setup, there would be a good bit more room.

painteralg · 01-27-2005, 07:00 PM

Thanks, I think I found the problem my rear-end pinion is negative not positive. Iâ€™ll adjust the four link tonight to see if that reduces some of the driveline yoke play.

Brainchild · 01-27-2005, 07:49 PM

Just something to think about,putting the engine in the I6 position you'll be moving it to the back Approx. 3 inches.You'll gain some weight transfer,and a little traction,and move the center of gravity also.I don't know if that's an important thing to you,but thought I would throw it out there.Every little bit helps

69 longhorn · 01-27-2005, 08:15 PM

Quote:

Originally Posted by Brainchild

Just something to think about,putting the engine in the I6 position you'll be moving it to the back Approx. 3 inches.You'll gain some weight transfer,and a little traction,and move the center of gravity also.I don't know if that's an important thing to you,but thought I would throw it out there.Every little bit helps

I would go for the setback that the 6 stands give(3 1/2"), doesnt seem like a lot, but it does help

crazyL

**lolife99** · 01-27-2005, 08:30 PM

Welcome to the board from Missouri. Post some pics of your truck when you get time. We would love to see some. Also,... what color yellow is that?

painteralg · 02-01-2005, 09:53 AM

lolife99,

The color is 2002 corvette yellow paint code WA 5456. I will post new pictures in the picture board.

Thanks,

01-27-2005, 04:20 PM	#1
painteralg Registered User Join Date: Jan 2005 Location: New Mexico Posts: 22	67-72 Chevy motor mount placement Hello, I'm new to the site, currently restoring a 69 SWB prostreet truck and I have installed the new 383 stroker and it seems to sit too far forward on the frame. I know there are two positions for the motor frame mounts front and a back. But I looked at moving the motor frame mounts to the back position but the lower bolt doesnâ€™t line up with a pre drilled hole on the cross member. Please help.

01-27-2005, 04:36 PM	#2
CPNE Resident Curmudgeon Join Date: Dec 1999 Location: NH Posts: 6,662	I beleive you need the I6 stands in order to get the bolt holes to line up __________________ Currently on or near the homestead: 67 Chevy SWB 2WD stepside 350/3 on tree (Pat's) 67 GMC SWB 2WD Fleet 402/auto (Brian's under construction) 67 Chevy 3/4 ton 2WD 402/auto (Business Hauler) 67 Chevy 1 ton dually 2WD 396/4 speed (Former business hauler, Needs TLC) 68 Chevy 1/2 ton Suburban 2WD 250 six/3 on tree (Brian's Needs TLC) 70 Chevy 3/4 ton 4WD 350/4 speed (Pat's - Disguised as a 68 GMC) 71 Chevy SWB stepside (Crushed by tree - parts donor) 72 Chevy 3/4 ton 4WD (Parts donor) 72 Chevy 3/4 ton 4WD Suburban (Parts Donor) 72 GMC 3/4 ton 4WD 292 six/4 speed (Mine - Disguised as a 67 GMC) 81 GMC 4WD Dually Dump Body 350/4 speed (Business Hauler) 82 Camaro Z/28 355/Super T-10 (Pat's toy) 93 Caprice 9C1 (Brian's Cop Car) 02 Toyota Camry (Reliable but a souless steel and plastic hulk) 2011 2SS RS Camaro M6 Factory Hurst Shifter Maybe I need to sell some of this crap Yet another Bozo with a sawz-all

01-27-2005, 04:57 PM	#5
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	If you are currently using the "forward" set of holes, those were the "original" V-8 mount locations for the 327 and 350. Like CPNE said, if you want it to sit back farther use I6 stands. How far is your fan from the radiator now? Newer V-8's water pumps are longer than the original pumps, maybe that's why your motor "appears" to be too far forward. my $.02 __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

01-27-2005, 05:06 PM	#6
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	Welcome to the board from South Mississippi! Check out our FAQ page for some good info! It's board rules to post pics of your ride, no matter what shape it's in! __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

01-27-2005, 05:13 PM	#8
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	My truck has a rebuilt '78 350 motor in it with the "long" water pump. It also sit's 2-3 inches from the radiator. I haven't had any overheating problems or handling problems at all. The truck is parked now 'cause of a blown 700R4, but I put 6,000 miles on the new motor with no problems....hope that helps ya. Have you tried to bolt the tranny up yet? If it is in and fits well, I'd leave her alone...Anyone else??? __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

01-27-2005, 04:48 PM	#3
painteralg Registered User Join Date: Jan 2005 Location: New Mexico Posts: 22	Thank you. I also hear somewhere that the first spark plug hole should be inline with the swing arm tie rod. Is that correct?

01-27-2005, 05:09 PM	#7
painteralg Registered User Join Date: Jan 2005 Location: New Mexico Posts: 22	The radiator (4 core) sits ~2-3 inches from the fan. So by using the front mounting holes I should be fine? No handling issue?

01-27-2005, 05:30 PM	#9
painteralg Registered User Join Date: Jan 2005 Location: New Mexico Posts: 22	Yea, the motor and tranny are in, along with the driveline. The driveline yoke sticks out of the tranny about 2 inches, when connected to the narrowed 12 bolt. My setup just looks different then some other trucks Iâ€™ve seen. I also replaced the entire short water pump/accessories with a long water pump and according pulleys and brackets. Thanks again for all your help.

01-27-2005, 07:00 PM	#12
painteralg Registered User Join Date: Jan 2005 Location: New Mexico Posts: 22	Thanks, I think I found the problem my rear-end pinion is negative not positive. Iâ€™ll adjust the four link tonight to see if that reduces some of the driveline yoke play.

01-27-2005, 07:49 PM	#13
Brainchild Still drivin' a Rat Rod Join Date: Sep 2004 Location: Monett Missouri Posts: 4,925	Just something to think about,putting the engine in the I6 position you'll be moving it to the back Approx. 3 inches.You'll gain some weight transfer,and a little traction,and move the center of gravity also.I don't know if that's an important thing to you,but thought I would throw it out there.Every little bit helps __________________ Rusty Member #13872 Instead of saying.....you are a discomfort in the back of my front.....one should be able to say...... you are a pain in the a$# 71 GMC LWB 49 Chevy 85 Chevy G20 Check out my website

01-27-2005, 08:30 PM	#15
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Welcome to the board from Missouri. Post some pics of your truck when you get time. We would love to see some. Also,... what color yellow is that? __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

02-01-2005, 09:53 AM	#16
painteralg Registered User Join Date: Jan 2005 Location: New Mexico Posts: 22	lolife99, The color is 2002 corvette yellow paint code WA 5456. I will post new pictures in the picture board. Thanks,

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