a bunch of questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

71Rat · 09-02-2003, 10:02 PM

ok here we go... i have a 71 c-10 2 wheel drive with a 3 speed and a 350 p/s and non power brakes... it is mainly stock.... i lowered it and thats about it... now for my questions-
1) what do i need to do to hook up power brakes? i know i need a vacume line but i took the plug out of the intake and am running a rat fink license plate holder that folds up... so what do i connect to then
2) i am doing transmissions in school so i am going to build me a nice 700r4.. but i am having a hard time figuring out how it is going to mount, right now i have a cross member holding up my bell housing and the trans floats off that. what do i do about a different cross member?
3) this is not going to be as soon as the others, but what would you guys recomend for a nice 383 combo? i don't have engine class for a few weeks but once i do i want to be ready to build me my 383 with tons of power and torque

thanks for all your help, any suggestions are welcome.... plus if anyone is interested in a 72 front clip (firewall forward) let me know... my teach has one and all i want is the grill... but supposedly everything else is in great condition... he might have some nice burban doors also

michael

cdowns · 09-02-2003, 10:12 PM

you have to get an auto trans crossmember, put a wanted to buy in the parts board, as far as the brakes you need master cyl,proportioning valve and booster from a power brake truck

O'l Buck · 09-03-2003, 10:51 AM

you can get a tee that will screw into the hole where you have the line for your R.F. liscense frame and take off of it for the brakes.

71Rat · 09-03-2003, 11:08 AM

cdowns- thank you for the advise, but how does the back of the motor hold in then? does it just get the rest of it's support from the trans and it's cross member? right now the rear of my motor is resting on the bellhouseing mounts... to me this seems more supportive.. thanks again for your help

o'l buck- thats what i was somewhat thinking but that plate has constant vacume needed to hold it down.... will that effect the brakes?

adamls · 09-03-2003, 02:53 PM

Vacuum is vacuum any where in the line, one shoudlnt affect the other. I would suggest an hydraulic power combo kit for your brakes, the cost is not too mush more considering all the parts that go with a vacuum kit.

http://67-72chevytrucks.com/vboard/s...threadid=65013

The majority of your engine weight is on the engine mounts. An automatic crossmember at the tail is all you need.

I am going with the crate 383 with HOT cam and possibly fast burn heads, 460-480 ft-lbs. But $$$$.

71Rat · 09-03-2003, 04:11 PM

adamls- thanks for the input. i am guessing that most auto's came with just the motor mounts and a trans mount... yeah i don't know the specs on the 383 i am going to build just yet but i know that it is going to be all crazy.... i have the engine class in about 6 weeks so thats when i get to play with engine dyno's and other fun stuff

Project1970 · 09-03-2003, 04:29 PM

Yeah, a standard automatic setup is the engine mounts and the crossmember at the tail end of the tranny, the two "float" between...

Do yourself a favor and buy new motor mounts! I think it was a combination of things (more stress on the mounts from the further-back crossmember, more stress from more torque on the mounts) but as soon as I had my TH400 swapped in place of the 3-on-the-tree, I toasted both motor mounts...do them while you have the tranny disconnected, it should probably make things somewhat easier when getting that done!

71Rat · 09-03-2003, 05:12 PM

project1970- thanks for the advice about the motor mounts but they are all new... i had the truck down to the frame, just the cab left on and i replaced all mounts and everything... now i am tired of the way it is and want to build it into a nasty street truck

09-02-2003, 10:02 PM	#1
71Rat ran out of money Join Date: Apr 2003 Location: northern, NJ Posts: 925	a bunch of questions ok here we go... i have a 71 c-10 2 wheel drive with a 3 speed and a 350 p/s and non power brakes... it is mainly stock.... i lowered it and thats about it... now for my questions- 1) what do i need to do to hook up power brakes? i know i need a vacume line but i took the plug out of the intake and am running a rat fink license plate holder that folds up... so what do i connect to then 2) i am doing transmissions in school so i am going to build me a nice 700r4.. but i am having a hard time figuring out how it is going to mount, right now i have a cross member holding up my bell housing and the trans floats off that. what do i do about a different cross member? 3) this is not going to be as soon as the others, but what would you guys recomend for a nice 383 combo? i don't have engine class for a few weeks but once i do i want to be ready to build me my 383 with tons of power and torque thanks for all your help, any suggestions are welcome.... plus if anyone is interested in a 72 front clip (firewall forward) let me know... my teach has one and all i want is the grill... but supposedly everything else is in great condition... he might have some nice burban doors also michael __________________ Modify everything, leave nothing alone!~

09-02-2003, 10:12 PM	#2
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	you have to get an auto trans crossmember, put a wanted to buy in the parts board, as far as the brakes you need master cyl,proportioning valve and booster from a power brake truck __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

09-03-2003, 10:51 AM	#3
O'l Buck Recovering Truck Driver Join Date: Mar 2002 Location: Orleans, NE USA Posts: 1,883	you can get a tee that will screw into the hole where you have the line for your R.F. liscense frame and take off of it for the brakes. __________________ 67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska

09-03-2003, 11:08 AM	#4
71Rat ran out of money Join Date: Apr 2003 Location: northern, NJ Posts: 925	cdowns- thank you for the advise, but how does the back of the motor hold in then? does it just get the rest of it's support from the trans and it's cross member? right now the rear of my motor is resting on the bellhouseing mounts... to me this seems more supportive.. thanks again for your help o'l buck- thats what i was somewhat thinking but that plate has constant vacume needed to hold it down.... will that effect the brakes? __________________ Modify everything, leave nothing alone!~

09-03-2003, 02:53 PM	#5
adamls Gotta Startem Early Join Date: Oct 2001 Location: Amarillo, TX, USA Posts: 364	Vacuum is vacuum any where in the line, one shoudlnt affect the other. I would suggest an hydraulic power combo kit for your brakes, the cost is not too mush more considering all the parts that go with a vacuum kit. http://67-72chevytrucks.com/vboard/s...threadid=65013 The majority of your engine weight is on the engine mounts. An automatic crossmember at the tail is all you need. I am going with the crate 383 with HOT cam and possibly fast burn heads, 460-480 ft-lbs. But $$$$. __________________ 67 SWB In Progress, one piece at a time, maybe 3 years I will be finished

09-03-2003, 04:11 PM	#6
71Rat ran out of money Join Date: Apr 2003 Location: northern, NJ Posts: 925	adamls- thanks for the input. i am guessing that most auto's came with just the motor mounts and a trans mount... yeah i don't know the specs on the 383 i am going to build just yet but i know that it is going to be all crazy.... i have the engine class in about 6 weeks so thats when i get to play with engine dyno's and other fun stuff __________________ Modify everything, leave nothing alone!~

09-03-2003, 04:29 PM	#7
Project1970 14.1 @ 96MPH Join Date: Jul 2001 Location: Mesa, AZ Posts: 2,811	Yeah, a standard automatic setup is the engine mounts and the crossmember at the tail end of the tranny, the two "float" between... Do yourself a favor and buy new motor mounts! I think it was a combination of things (more stress on the mounts from the further-back crossmember, more stress from more torque on the mounts) but as soon as I had my TH400 swapped in place of the 3-on-the-tree, I toasted both motor mounts...do them while you have the tranny disconnected, it should probably make things somewhat easier when getting that done! __________________ Project1970 - LS1 Swap Complete!

09-03-2003, 05:12 PM	#8
71Rat ran out of money Join Date: Apr 2003 Location: northern, NJ Posts: 925	project1970- thanks for the advice about the motor mounts but they are all new... i had the truck down to the frame, just the cab left on and i replaced all mounts and everything... now i am tired of the way it is and want to build it into a nasty street truck __________________ Modify everything, leave nothing alone!~



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