454 in 69 c-10 - Page 2 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**1970 CST Short Wide** · 02-03-2005, 01:36 PM

This is in my 70

454 in front holes, used 72 correct mounts (Fits Great), 350 trans (had to shorten drive shaft 1 inch), , Headers fit perfect (Dynamax) Heater Box not an issue

Lots of fun

Purs · 02-03-2005, 01:48 PM

70cst, are those dynomax headers 2" primaries or 1 7/8? I'm looking for some 2" primary tube headers. thanks.

Dano69c10 · 02-03-2005, 02:08 PM

Thanks everyone,
I was going to use a stock 454 and stock exhaust manifolds. If I use stock exhaust manifolds can I use small block engine towers? I have a low hump cab, but I just bought a trans cover and was going to install it. I just installed new urethane cab mounts, but I'll probably put the high hump in anyway. Does any one know if I will need to shorten or lengthen my driveshaft?
I would like to get it done on a weekend without having to make parts store runs, so if anyone has the dimensions for the driveshaft I'd appreciate it. I'm ready to pull some all-niters.
Dano

**1970 CST Short Wide** · 02-03-2005, 02:50 PM

For Purs
JEGS
289-86022 Cerama-Coat Headers for Trucks with 396-454ci,
1/2-, 3/4-, 1-Ton Pickup 2WD 1967-87
Blazer/Jimmy 2WD 1968-87
$242.99

I think there 1 7/8

**1970 CST Short Wide** · 02-03-2005, 02:56 PM

It is my understanding that if you use SB mounts the stock maniflolds will hit the frame.This happened to a guy I knew a few years back but I dont know what position his motor was in. I used 72 BB mounts and a 350 trans and had to redrill for the rear motor mount and shorten my 1 pieace drivshaft. seems it move everthing back 1 inch, sorry cant remmember the total length somewhere ~57 inches I think

Just food for thought.
Good Luck

Rdrdave · 02-03-2005, 04:04 PM

Quote:

Originally Posted by too much stuff

Couple pics for Rdrdave.
This is a 4x4, not sure what the oil pan is originally, exhaust manifolds are from a 77 chev 1/2 ton. It does fit, just a little tight in places...

Thanks I'll see what happens and post some pics once i start.

Tx Firefighter · 02-03-2005, 06:41 PM

Stock manifolds will not work with small block mount stands.

See the big block motor mount article I wrote in the FAQ for better pictures and details.

Dano69c10 · 02-03-2005, 10:00 PM

Is it true that I will need a different fuel sending unit (3/8" line).

Will an auto trans crossmember out of a 79 chevy truck work or will I need one from a 67-72? The 454 is in a 79 chevy truck. What can I use from this truck.

Will I have to take out the manual trans crossmember under the bell housing in my '69?

What about hooking up the th-400 selector rod to the frame, will my 69 have a place to do this?

I guess I'll need an auto steering column with linkage.

To save myself money, should I forget the th-400 and leave the three speed?Will the three speed be able to handle the 454?

What else will I have to buy to make the swap?

I already have a 4-core rad, but it's starting to look like more than an easy swap.

Don't think I'll be able to get it done this weekend.
Dano

02-03-2005, 01:36 PM	#26
1970 CST Short Wide Senior Moment Join Date: Mar 2002 Location: Pittsburg Ca Posts: 4,185	This is in my 70 454 in front holes, used 72 correct mounts (Fits Great), 350 trans (had to shorten drive shaft 1 inch), , Headers fit perfect (Dynamax) Heater Box not an issue Lots of fun Attached Images __________________ 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 Last edited by 1970 CST Short Wide; 02-03-2005 at 01:39 PM.

02-03-2005, 01:48 PM	#27
Purs Got Big Block? Join Date: Apr 2000 Location: West Texas Posts: 1,510	70cst, are those dynomax headers 2" primaries or 1 7/8? I'm looking for some 2" primary tube headers. thanks. __________________ "Experience is what you get when you didn't get what you wanted."

02-03-2005, 02:08 PM	#28
Dano69c10 Senior Member Join Date: Jan 2005 Location: Ontario, Kali Posts: 2,427	Thanks everyone, I was going to use a stock 454 and stock exhaust manifolds. If I use stock exhaust manifolds can I use small block engine towers? I have a low hump cab, but I just bought a trans cover and was going to install it. I just installed new urethane cab mounts, but I'll probably put the high hump in anyway. Does any one know if I will need to shorten or lengthen my driveshaft? I would like to get it done on a weekend without having to make parts store runs, so if anyone has the dimensions for the driveshaft I'd appreciate it. I'm ready to pull some all-niters. Dano __________________ '69 Fleet It ain't yours, if you didn't build it!

02-03-2005, 02:50 PM	#29
1970 CST Short Wide Senior Moment Join Date: Mar 2002 Location: Pittsburg Ca Posts: 4,185	For Purs JEGS 289-86022 Cerama-Coat Headers for Trucks with 396-454ci, 1/2-, 3/4-, 1-Ton Pickup 2WD 1967-87 Blazer/Jimmy 2WD 1968-87 $242.99 I think there 1 7/8 __________________ 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

02-03-2005, 02:56 PM	#30
1970 CST Short Wide Senior Moment Join Date: Mar 2002 Location: Pittsburg Ca Posts: 4,185	It is my understanding that if you use SB mounts the stock maniflolds will hit the frame.This happened to a guy I knew a few years back but I dont know what position his motor was in. I used 72 BB mounts and a 350 trans and had to redrill for the rear motor mount and shorten my 1 pieace drivshaft. seems it move everthing back 1 inch, sorry cant remmember the total length somewhere ~57 inches I think Just food for thought. Good Luck __________________ 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

02-03-2005, 06:41 PM	#32
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Stock manifolds will not work with small block mount stands. See the big block motor mount article I wrote in the FAQ for better pictures and details. __________________ I'm on the Instagram- @Gearhead_Kevin

02-03-2005, 10:00 PM	#33
Dano69c10 Senior Member Join Date: Jan 2005 Location: Ontario, Kali Posts: 2,427	Is it true that I will need a different fuel sending unit (3/8" line). Will an auto trans crossmember out of a 79 chevy truck work or will I need one from a 67-72? The 454 is in a 79 chevy truck. What can I use from this truck. Will I have to take out the manual trans crossmember under the bell housing in my '69? What about hooking up the th-400 selector rod to the frame, will my 69 have a place to do this? I guess I'll need an auto steering column with linkage. To save myself money, should I forget the th-400 and leave the three speed?Will the three speed be able to handle the 454? What else will I have to buy to make the swap? I already have a 4-core rad, but it's starting to look like more than an easy swap. Don't think I'll be able to get it done this weekend. Dano __________________ '69 Fleet It ain't yours, if you didn't build it!

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