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#1 |
Registered User
Join Date: Jun 2009
Location: KS
Posts: 107
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66 v8 swap need help!
Alright so ive pretty much got this whole v8 swap done on my own from start to finish in the last 3 days and i am nearly finished till i go to put my exhaust manifolds on and they wont fit because of the z bar is right where the outlet is for the drivers side manifold anybody know a fix for this? ramhorns maybe? but then i gotta have my exhaust redone from manifolds back =/ which i really am not dieing to do beings i had enough exhaust to get behind the cab with my other setup
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1966 chevy 1/2 ton freshly rebuilt 350 stock cam performer intake 600 cfm edelbrock 4spd behind it 1986 chevy 4x4 1/2 ton 350 700r4/208 2in lift blocks 31 at tires |
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#2 |
Double 6's
Join Date: Oct 2008
Location: Winter Haven, FL
Posts: 349
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Re: 66 v8 swap need help!
Block huggers? prolly will still mean you need new exhaust, but its looking like that anyway right?
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Street Glidin! 1966 LWB Custom Cab (sold) 1982 Short Fleet (under the knife) 1998 S10 2wd Fleet 2007 Chevy Silverado Crew 2007 Harley Davidson Street Glide |
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#3 |
Registered User
Join Date: Jul 2005
Location: AL
Posts: 1,828
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Re: 66 v8 swap need help!
the rams horns should work....would think a good muffler shop could install just the portion of exhaust pipe to connect the new manifolds to the existing pipes.
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#4 |
Senior Enthusiast
Join Date: Feb 2007
Location: Spokane Valley, WA
Posts: 8,356
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Re: 66 v8 swap need help!
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#5 |
Registered User
Join Date: Jun 2009
Location: KS
Posts: 107
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Re: 66 v8 swap need help!
im worried my plug wires i just bought arent going to work with them either the biggest thing is the closest exhaust shop is ok but hes damn high priced the best guy i know is about 45 miles away and itd be $250 for pipe all the way out the back with glasspacks from the manifolds but thats a long drive with open manifolds
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1966 chevy 1/2 ton freshly rebuilt 350 stock cam performer intake 600 cfm edelbrock 4spd behind it 1986 chevy 4x4 1/2 ton 350 700r4/208 2in lift blocks 31 at tires |
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#6 |
Registered User
Join Date: Jun 2009
Location: KS
Posts: 107
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Re: 66 v8 swap need help!
marke are you running an auto trans or manual its my clutch linkage im hung up on
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1966 chevy 1/2 ton freshly rebuilt 350 stock cam performer intake 600 cfm edelbrock 4spd behind it 1986 chevy 4x4 1/2 ton 350 700r4/208 2in lift blocks 31 at tires |
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#7 | |
Senior Enthusiast
Join Date: Feb 2007
Location: Spokane Valley, WA
Posts: 8,356
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Re: 66 v8 swap need help!
Quote:
I’m currently reconditioning the engine compartment. One improvement was a new hard line for the clutch. Here’s a close up for reference as to how everything fits. Perhaps this will help visualize the clearance. ![]() |
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#8 |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: 66 v8 swap need help!
You can not run the later model exhaust manifolds in these trucks with a manual trans. You have to run either the ram horn manifolds, block hugger headers, or any one of about 3 different LT headers.
If you went with LT headers, you could build a temporary exhaust system fairly easy. You could go with header mufflers if nothing else.
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE Last edited by Captainfab; 06-29-2011 at 12:53 AM. |
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#9 | |
Redneck Hillbilly
Join Date: Jan 2010
Location: Backwoods
Posts: 1,307
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Re: 66 v8 swap need help!
Quote:
Smallblock Kid: Sorry bud, I'm not trying to jack your thread....I've just been looking at my swap and seeing that this may be an issue that I will run into as well. I'd really like to keep my 4-speed. |
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#10 | |
60-66 Nut
![]() ![]() Join Date: Mar 2007
Location: Coeur d'Alene, Idaho
Posts: 23,247
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Re: 66 v8 swap need help!
I have not seen A-body headers used on a truck of this vintage, just a squarebody, and it was an auto truck. If you really want to use the A-body headers, and the only issue is the mechanical clutch linkage, you might consider converting to a hydraulic clutch. It really isn't that difficult. I have sold a couple of my '60-'62 booster bracket kits that were modified to fit the '63-'66 trucks.
Quote:
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Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE |
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#11 |
Registered User
Join Date: Jun 2009
Location: KS
Posts: 107
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Re: 66 v8 swap need help!
ive got a set of ramhorns off one of our old wheat trucks that im gonna run i dont really like block huggers and idk how hard itd be to get some lt headers or how expensive so looks like im gonna pick the cheaper route and i wont worry about leaking headers either ive got a hydraulic clutch setup but id rather not take the motor back out and im gonna use it once i got to 4x4 and the cummins in it
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1966 chevy 1/2 ton freshly rebuilt 350 stock cam performer intake 600 cfm edelbrock 4spd behind it 1986 chevy 4x4 1/2 ton 350 700r4/208 2in lift blocks 31 at tires |
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#12 |
Watch out for your cornhole !
![]() Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: 66 v8 swap need help!
To clarify, are your running straight dump ramshorns or rearward dump ramshorns ?
On my 63, I couldn't run the rearward dump ones (of a 72 I parted) as it hit my clutch linkage. I replaced them with straight dump ones and everything fit well from there on.
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I'm on the Instagram- @Gearhead_Kevin |
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#13 |
Registered User
Join Date: Jun 2009
Location: KS
Posts: 107
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Re: 66 v8 swap need help!
im running the straight dump ones i didnt figure the angled ones would work it looks like ill have to cut the pipes off because the bolts are seized up
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1966 chevy 1/2 ton freshly rebuilt 350 stock cam performer intake 600 cfm edelbrock 4spd behind it 1986 chevy 4x4 1/2 ton 350 700r4/208 2in lift blocks 31 at tires |
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#14 |
Registered User
Join Date: Jun 2009
Location: KS
Posts: 107
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Re: 66 v8 swap need help!
alright so i think ive got eveything all lined out for the exhaust to work now just my spark plugs are running over the top of the manifolds so im putting some heat wrap boots over them o and i found this http://american-muffler.com/item1.asp?Cat_ID=20 kit from a shop not to far away that i was wondering what everybodies imput on it is is 2 1/4 in fine for flow? or would 2 1/2 be better and which sounds better to?
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1966 chevy 1/2 ton freshly rebuilt 350 stock cam performer intake 600 cfm edelbrock 4spd behind it 1986 chevy 4x4 1/2 ton 350 700r4/208 2in lift blocks 31 at tires |
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#15 |
Registered User
Join Date: Jun 2009
Location: KS
Posts: 107
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Re: 66 v8 swap need help!
i really doubt any long tube header would fit the linkage is just too close to the exhaust i had a buddies set of headers and tryed to test fit them they were off a pickup to start with but still id figure a cars headers would have to tuck up even closer
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1966 chevy 1/2 ton freshly rebuilt 350 stock cam performer intake 600 cfm edelbrock 4spd behind it 1986 chevy 4x4 1/2 ton 350 700r4/208 2in lift blocks 31 at tires |
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