Quick Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

rome704 · 09-13-2009, 12:57 AM

Im getting a 68 c10 l6 i was wondering what do i need to switch it over to a v8

like give me list kinda lost and me and the search drive isn't getting along

68gmsee · 09-13-2009, 09:29 AM

Been a long time since I converted mine... You didn't say what you have but more than likely it's a six with 3 speed standard trans and manual everything.

I was more fortunate in that I did mine about 20 years ago when parts were more plentiful. I converted mine to a 350 with 350 auto trans, p.s. and power brakes and had a donor truck to take parts from.

motor mounts (I think you can use the six mounts of it's a 250)
Rear of transmission cross member
Radiator for the auto trans
3.08 rear axle off donor truck (Sixes are geared too low)

If there's more stuff, someone else will chime in.

rome704 · 09-13-2009, 10:47 AM

Quote:

Originally Posted by 68gmsee

Been a long time since I converted mine... You didn't say what you have but more than likely it's a six with 3 speed standard trans and manual everything.

I was more fortunate in that I did mine about 20 years ago when parts were more plentiful. I converted mine to a 350 with 350 auto trans, p.s. and power brakes and had a donor truck to take parts from.

motor mounts (I think you can use the six mounts of it's a 250)
Rear of transmission cross member
Radiator for the auto trans
3.08 rear axle off donor truck (Sixes are geared too low)

If there's more stuff, someone else will chime in.

yeah sry its a L6 with the 3 on the tree

thanks for the info

71tahoe · 09-13-2009, 05:59 PM

I like the snap-your-head-back-to-the-window acceleration so I disagree on needing another rear axle.

Any power steering will need new brackets and probably hoses. To keep the alternator on the driver's side you need short water pump, brackets and pulleys. I would recommend a fan shroud since the fan will be farther from the rad and a 7 blade fan with clutch. I've never put a fan clutch on a short WP so it might only fit a long pump.

To re-use the 3-speed.

Look for a block with the tapped hole by the dipstick boss on the driver's side. It will take a screw-in ball stud for the z-bar. If you choose to use headers, a tweak of the z-bar will likely be necessary for clearance.

Auto:

Rear crossmember, linkage, column or floor shift, auto radiator, cooler lines, starter for auto trans.

09-13-2009, 12:57 AM	#1
rome704 Registered User Join Date: Feb 2009 Location: NC Posts: 85	Quick Question Im getting a 68 c10 l6 i was wondering what do i need to switch it over to a v8 like give me list kinda lost and me and the search drive isn't getting along __________________ Roman "LCPL" Planter The Few The Proud The Marines

09-13-2009, 09:29 AM	#2
68gmsee Active Member Join Date: Jul 2007 Location: Centrally located between Houston, Austin and Waco. BCS area. Posts: 7,947	Re: Quick Question Been a long time since I converted mine... You didn't say what you have but more than likely it's a six with 3 speed standard trans and manual everything. I was more fortunate in that I did mine about 20 years ago when parts were more plentiful. I converted mine to a 350 with 350 auto trans, p.s. and power brakes and had a donor truck to take parts from. motor mounts (I think you can use the six mounts of it's a 250) Rear of transmission cross member Radiator for the auto trans 3.08 rear axle off donor truck (Sixes are geared too low) If there's more stuff, someone else will chime in.

09-13-2009, 05:59 PM	#4
71tahoe Registered User Join Date: May 2006 Location: Jonesboro, AR Posts: 916	Re: Quick Question I like the snap-your-head-back-to-the-window acceleration so I disagree on needing another rear axle. Any power steering will need new brackets and probably hoses. To keep the alternator on the driver's side you need short water pump, brackets and pulleys. I would recommend a fan shroud since the fan will be farther from the rad and a 7 blade fan with clutch. I've never put a fan clutch on a short WP so it might only fit a long pump. To re-use the 3-speed. Look for a block with the tapped hole by the dipstick boss on the driver's side. It will take a screw-in ball stud for the z-bar. If you choose to use headers, a tweak of the z-bar will likely be necessary for clearance. Auto: Rear crossmember, linkage, column or floor shift, auto radiator, cooler lines, starter for auto trans.



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