Small block to big block AC question? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

myyamr7 · 10-30-2013, 09:32 PM

Hi, I am thinking of buying a big block for my truck, found a complete low miles GM Goodwrench 454 replacement engine for a fair price. It has all the brackets and hardware except the AC. My 71 C10 has a 350 with AC and I want to keep the AC as it works perfectly.
My question is, can I use any of the small block brackets or pulleys on the big block? I know I need the BB AC brackets, but hoping I can use the lower engine pulley, water pump pulley and maybe the altenator + brackets?
Thanks

**leddzepp** · 10-30-2013, 10:25 PM

No, they are different

TinTop · 10-31-2013, 09:18 AM

Hey there. I'm going the other way. I'd be willing to swap brackets.

I have a 402 BB with factory air and going to a 350HP 350 crate motor. The Air brackets have been the most aggravating part of the whole project. Mine is coming out mid Nov. Let me know. Can you shoot me a picture of your bracket? Long or short water pump?

TinTop

**1970 CST Short Wide** · 10-31-2013, 10:31 AM

Thats what this board is all about.

myyamr7 · 10-31-2013, 03:58 PM

Quote:

Originally Posted by TinTop

Hey there. I'm going the other way. I'd be willing to swap brackets.

I have a 402 BB with factory air and going to a 350HP 350 crate motor. The Air brackets have been the most aggravating part of the whole project. Mine is coming out mid Nov. Let me know. Can you shoot me a picture of your bracket? Long or short water pump?

TinTop

I'm just in the planning stage now, so I'm not sure I could swap by mid November. I would certainly make the trade if we can make the timing work out for both of us.

The brackets in mine are factory, all I did was take everything, sand it down and paint it. I'm guessing the trade would be for everything..all pulleys, complete AC brackets, complete Power steering brackets (no pump) and complete alt brackets (no alt). Mine is the short waterpump as well.
All I have is one picture of the complete engine bay at the moment, I can take some more once I get back to the garage.

dkooi · 10-31-2013, 04:16 PM

You should post some more pictures of that truck, that thing looks clean!

TinTop · 10-31-2013, 04:17 PM

Sounds good. Mine will be done, however All the parts will be available. Mine is a good running 402, but the valve seats are burnt. The truck does about 4MPG but has high oil pressure and no smoke at all.

I think I'll craiglist the motor.

myyamr7 · 10-31-2013, 04:23 PM

I'm sure shipping would cost a small fortune, but what are you looking to get for the 402?

TinTop · 10-31-2013, 04:28 PM

I was hoping for 500. Where are you? I have a shipping crate for the motor that came with my crate motor.

myyamr7 · 10-31-2013, 04:28 PM

Quote:

Originally Posted by dkooi

You should post some more pictures of that truck, that thing looks clean!

Thanks, it is a clean truck for sure. Still needs a few things and the paint is 25 years old

myyamr7 · 10-31-2013, 04:30 PM

Quote:

Originally Posted by TinTop

I was hoping for 500. Where are you? I have a shipping crate for the motor that came with my crate motor.

I'm in RI on the east coast. I'd pay the 500 if the shipping was reasonable

TinTop · 10-31-2013, 04:34 PM

I ship all the time to Mass. it has been fairly reasonable. I'd leave everything on the motor. It may still be warm from running prior to the swap

myyamr7 · 10-31-2013, 04:48 PM

I'm interested for sure, I have a business address you could ship to with a forklift to unload if it's normal business hours. Lets make a deal! Though I'd still need time to rebuild it before I change it over and free up the small block accessories for you.

edit: postal code is 02886

TinTop · 10-31-2013, 04:53 PM

It sound like a done deal to me. I'll keep you posed. I would ship it CEVA Freight delivered to your dock. It has 107000 on the motor.

Electronic distributer, PS.

TinTop

Mark Carlson

myyamr7 · 10-31-2013, 04:58 PM

Cool, let me know the shipping costs. I can either mail a check or send paypal.
Will it also have the exhaust manifolds? If you could take a picture of what you'd be sending, that would be awesome

TinTop · 10-31-2013, 05:05 PM

It will have a flexplate, exhaust manifolds , Carb, oil press switch, all heating fittings, new water pump. motor mounts, and power steering pump and all the pullys. It will be driven to the shop and the motor swap will happen.

It will go in the crate, and come to you.

I'll keep the Alt and Starter.

Tin Top

myyamr7 · 11-01-2013, 06:32 PM

Cool..and the AC and alt brackets?

I'm not sure the stock small block AC brackets will work with your valve covers though? Here's a picture I just took showing the brackets..

10-30-2013, 09:32 PM	#1
myyamr7 Registered User Join Date: Dec 2012 Location: Providence, RI Posts: 211	Small block to big block AC question? Hi, I am thinking of buying a big block for my truck, found a complete low miles GM Goodwrench 454 replacement engine for a fair price. It has all the brackets and hardware except the AC. My 71 C10 has a 350 with AC and I want to keep the AC as it works perfectly. My question is, can I use any of the small block brackets or pulleys on the big block? I know I need the BB AC brackets, but hoping I can use the lower engine pulley, water pump pulley and maybe the altenator + brackets? Thanks __________________ Mark 71 C10 Cheyenne 12 Aprilia RSV4

10-30-2013, 10:25 PM	#2
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 20,031	Re: Small block to big block AC question? No, they are different __________________ 1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul

10-31-2013, 09:18 AM	#3
TinTop Registered User Join Date: Oct 2013 Location: Seattle, WA Posts: 19	Re: Small block to big block AC question? Hey there. I'm going the other way. I'd be willing to swap brackets. I have a 402 BB with factory air and going to a 350HP 350 crate motor. The Air brackets have been the most aggravating part of the whole project. Mine is coming out mid Nov. Let me know. Can you shoot me a picture of your bracket? Long or short water pump? TinTop

10-31-2013, 10:31 AM	#4
1970 CST Short Wide Senior Moment Join Date: Mar 2002 Location: Pittsburg Ca Posts: 4,185	Re: Small block to big block AC question? Thats what this board is all about. __________________ 1970 CST LS 1 6 speed Ford 9 inch Detroit Tru Track, Dakota Didgital, Vintage Air, QA1 Coil Overs Front & Rear Lots of FUN 2013 GMC PU, Oldest Son 71 GMC LWB. QA1 Suspension, Angry SB. Youngest Son 2019 GMC Diesil Dually. Youngest Son 2017 Toyota SUV Daughters car 2018 Traverse , Wife’s Ride Pittsburg Ca 94565

10-31-2013, 04:16 PM	#6
dkooi Registered User Join Date: Jan 2003 Location: Mesa, AZ Posts: 173	Re: Small block to big block AC question? You should post some more pictures of that truck, that thing looks clean! __________________ 72 SWB 2WD, complete frame off resto

10-31-2013, 04:17 PM	#7
TinTop Registered User Join Date: Oct 2013 Location: Seattle, WA Posts: 19	Re: Small block to big block AC question? Sounds good. Mine will be done, however All the parts will be available. Mine is a good running 402, but the valve seats are burnt. The truck does about 4MPG but has high oil pressure and no smoke at all. I think I'll craiglist the motor. Attached Images

10-31-2013, 04:23 PM	#8
myyamr7 Registered User Join Date: Dec 2012 Location: Providence, RI Posts: 211	Re: Small block to big block AC question? I'm sure shipping would cost a small fortune, but what are you looking to get for the 402? __________________ Mark 71 C10 Cheyenne 12 Aprilia RSV4

10-31-2013, 04:28 PM	#9
TinTop Registered User Join Date: Oct 2013 Location: Seattle, WA Posts: 19	Re: Small block to big block AC question? I was hoping for 500. Where are you? I have a shipping crate for the motor that came with my crate motor.

10-31-2013, 04:34 PM	#12
TinTop Registered User Join Date: Oct 2013 Location: Seattle, WA Posts: 19	Re: Small block to big block AC question? I ship all the time to Mass. it has been fairly reasonable. I'd leave everything on the motor. It may still be warm from running prior to the swap

10-31-2013, 04:48 PM	#13
myyamr7 Registered User Join Date: Dec 2012 Location: Providence, RI Posts: 211	Re: Small block to big block AC question? I'm interested for sure, I have a business address you could ship to with a forklift to unload if it's normal business hours. Lets make a deal! Though I'd still need time to rebuild it before I change it over and free up the small block accessories for you. edit: postal code is 02886 __________________ Mark 71 C10 Cheyenne 12 Aprilia RSV4

10-31-2013, 04:53 PM	#14
TinTop Registered User Join Date: Oct 2013 Location: Seattle, WA Posts: 19	Re: Small block to big block AC question? It sound like a done deal to me. I'll keep you posed. I would ship it CEVA Freight delivered to your dock. It has 107000 on the motor. Electronic distributer, PS. TinTop Mark Carlson

10-31-2013, 04:58 PM	#15
myyamr7 Registered User Join Date: Dec 2012 Location: Providence, RI Posts: 211	Re: Small block to big block AC question? Cool, let me know the shipping costs. I can either mail a check or send paypal. Will it also have the exhaust manifolds? If you could take a picture of what you'd be sending, that would be awesome __________________ Mark 71 C10 Cheyenne 12 Aprilia RSV4

10-31-2013, 05:05 PM	#16
TinTop Registered User Join Date: Oct 2013 Location: Seattle, WA Posts: 19	Re: Small block to big block AC question? It will have a flexplate, exhaust manifolds , Carb, oil press switch, all heating fittings, new water pump. motor mounts, and power steering pump and all the pullys. It will be driven to the shop and the motor swap will happen. It will go in the crate, and come to you. I'll keep the Alt and Starter. Tin Top

11-01-2013, 06:32 PM	#17
myyamr7 Registered User Join Date: Dec 2012 Location: Providence, RI Posts: 211	Re: Small block to big block AC question? Cool..and the AC and alt brackets? I'm not sure the stock small block AC brackets will work with your valve covers though? Here's a picture I just took showing the brackets.. Attached Images __________________ Mark 71 C10 Cheyenne 12 Aprilia RSV4



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