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: 4,190	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 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: 4,190	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 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: 4,190	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 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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