small block where a 6 cyl was? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

manimal · 12-08-2007, 11:37 AM

Do I need to use the v8 sbc mounts to put a 327 in a '68 that had a 6cyl in it,or will the 6cyl mounts work? I am talking about the frame engine towers. Thank You
-Lance

smoky02 · 12-08-2007, 11:56 AM

you will need small block mounts...there are usually alot of them available here on this site.

Bob D · 12-08-2007, 12:08 PM

The I6 towers will work, but it will move the motor way back to the firewall. You distributor will barely miss the firewall tunnel and a belt driven fan will need spacers to reach the shroud for proper cooling.

Bob

72 CustomCamper · 12-08-2007, 05:06 PM

I've seen many trucks using the 6 cylinder mounts with a V8. Like Bob said though, the motor will be close to the firewall...

Chuck

Ben IV · 12-08-2007, 06:20 PM

I have my v-8 in the 6 cyl position, when i did the swap I dident know there was a difference. The distributor is close but clears and the back header bolts are kinda a pain to get to. But if you keep it in the 6 cyl position you dont have to get a longer driveshaft and theoretically should help with handeling but with a truck im not shur you could tell.

manimal · 12-08-2007, 06:23 PM

Thank you very much. I have the small block and 6cyl mounts but the manual trans is bolted to the crossmember via the bellhousing. So it looks like I will be using the 6cyl mounts.
-Lance

whatnow123 · 12-08-2007, 06:44 PM

Hum.. so by moving the engine back...I'm thinking this help would benefit with both handling and the transfer of weight to the rear. I could see this being a real benefit to these nose heavy trucks and is actually a good idea.

Anyone know how much it moves the engine?

crazy longhorn · 12-09-2007, 07:25 AM

Quote:

Originally Posted by whatnow123

Hum.. so by moving the engine back...I'm thinking this help would benefit with both handling and the transfer of weight to the rear. I could see this being a real benefit to these nose heavy trucks and is actually a good idea.

Anyone know how much it moves the engine?

3 1/2 " from sb v8 spot , to I 6 spot....

L

12-08-2007, 11:37 AM	#1
manimal Registered User Join Date: Oct 2006 Location: Southern Kalifornia Posts: 3,066	small block where a 6 cyl was? Do I need to use the v8 sbc mounts to put a 327 in a '68 that had a 6cyl in it,or will the 6cyl mounts work? I am talking about the frame engine towers. Thank You -Lance __________________ ------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT

12-08-2007, 11:56 AM	#2
smoky02 Registered User Join Date: Oct 2003 Location: Sunny, Florida, some might call it South Alabama Posts: 834	Re: small block where a 6 cyl was? you will need small block mounts...there are usually alot of them available here on this site. __________________ Just sold my C10...sad day... Looking for a 1972 Blazer to hopefully fill the hole in my heart.

12-08-2007, 12:08 PM	#3
Bob D Rolled on Paint Club Join Date: Jan 2006 Location: Windham, CT. Posts: 232	Re: small block where a 6 cyl was? The I6 towers will work, but it will move the motor way back to the firewall. You distributor will barely miss the firewall tunnel and a belt driven fan will need spacers to reach the shroud for proper cooling. Bob __________________ 1970 GMC 1500 swb fleetside SB 355ci. Smog heads Summit 1102 cam Performer intake and carb. Finally in about 1 piece in the yard.

12-08-2007, 05:06 PM	#4
72 CustomCamper huh ??? Join Date: Nov 2002 Location: Fredericksburg,Va. Posts: 3,369	Re: small block where a 6 cyl was? I've seen many trucks using the 6 cylinder mounts with a V8. Like Bob said though, the motor will be close to the firewall... Chuck __________________ 90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!"

12-08-2007, 06:20 PM	#5
Ben IV Registered User Join Date: Dec 2006 Location: Glenpool OK Posts: 255	Re: small block where a 6 cyl was? I have my v-8 in the 6 cyl position, when i did the swap I dident know there was a difference. The distributor is close but clears and the back header bolts are kinda a pain to get to. But if you keep it in the 6 cyl position you dont have to get a longer driveshaft and theoretically should help with handeling but with a truck im not shur you could tell. __________________ 70 GMC custom short bed conversion 69 GMC panel truck

12-08-2007, 06:23 PM	#6
manimal Registered User Join Date: Oct 2006 Location: Southern Kalifornia Posts: 3,066	Re: small block where a 6 cyl was? Thank you very much. I have the small block and 6cyl mounts but the manual trans is bolted to the crossmember via the bellhousing. So it looks like I will be using the 6cyl mounts. -Lance __________________ ------------------------------------------------------ -Lance 2000 Chevy C2500, 5.7, 4L80e 1999 Suburban K2500, 7.4, 4L80e 1980 Camaro..son's car...PROJECT

12-08-2007, 06:44 PM	#7
whatnow123 Registered User Join Date: Oct 2006 Location: Arizona Posts: 835	Re: small block where a 6 cyl was? Hum.. so by moving the engine back...I'm thinking this help would benefit with both handling and the transfer of weight to the rear. I could see this being a real benefit to these nose heavy trucks and is actually a good idea. Anyone know how much it moves the engine? __________________ 67 Short Step, 355, 700R 4.11 posi rear, 4/6 drop Discs on all 4 corners. Build thread: http://67-72chevytrucks.com/vboard/s...d.php?t=219094 Last edited by whatnow123; 12-08-2007 at 06:45 PM.

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