Power steering and power brakes - The 1947 - Present Chevrolet & GMC Truck Message Board Network

GM_lover · 08-23-2007, 10:29 PM

Ok, guys I have a question that is probably a popular one. I am a newbie here

and a new owner of a rusty minnesota '72 chevy pickup. I need to know what junkyard parts I need to scavenge to add power brakes and power steering to my '72. I guess that the 72's already have front disc brakes. Also , it is a 307 2 barrel longbox . Anyone know anything about the 307's ? Any input would be greatly appreciated. Thanks.

GM_lover · 08-26-2007, 12:10 AM

Anyone ??? Anyone at all ???

Brad · 08-26-2007, 12:15 AM

A '73 & up complete crossmember will bolt up by elongating one hole. Your question has been covered a bazillion and 1 times and if you do a search you'll have more info than you care to have. Again, try a search on the 307's. An interesting note is that someone here was considering doing a stroker 307. Lot's of talk on that post but no one has yet done it that I'm aware of.

69TowRig · 08-26-2007, 10:26 AM

All you should have to do on the power brakes is add the booster, brackets, and linkage to the master cylinder you already have. Power steering will require the pump, brackets, lines, and box.

You do not have to completely tear the truck up changing crossmembers and suspension, etc.

The 307 was the "smogger" econo-V8 for that era; more power than a 6 but less than a 350 (of course). I intend to junk mine when I get the chance.

shovelhead · 08-26-2007, 11:30 AM

If I remember right, the 307 has a 283 bore with a 327 stroke. Not a bad motor for a semi-economical daily driver, but there are better choices for hot rodding. My.02

shovel

Brad · 08-26-2007, 08:21 PM

Oops, I read that as disk brakes. 69TowRig is right.

streetstar · 08-26-2007, 09:48 PM

A whole lot of trucks out there ran just fine for a long time with a 307. Headers, mild cam, intake swap and a newer set of Vortec heads and it would surprise you. Piston choice is the only limiting factor with one.

Its still a small block chevy and the people who claim the 307 is useless have never stopped to think about it . Although its not necessarily a cheap re-build --- they all cost about the same, and 307 pistons may be a bit higher to boot if you have to go all the way with it.

The 307 in my '69 with a Holley 600 and aluminum corvette intake , rams horn manifolds and duals, made enough power to keep me in constant trouble with the local constables and have fun racing stoplight to stoplight on cruise night.

The 307 is one of those motors that performs big on the street and doesnt do anything on the dyno

6470chevy · 08-26-2007, 11:12 PM

just did the swap a few days ago got a donor 73 truck for free torched the front end and bolten it up used a 71 rear to match the 5 lug 1 bolt hole needs to be elongated to make the swap perfect great info in the faq section check it out

08-23-2007, 10:29 PM	#1
GM_lover Registered User Join Date: Aug 2007 Location: St.Francis , MN Posts: 5	Power steering and power brakes Ok, guys I have a question that is probably a popular one. I am a newbie here and a new owner of a rusty minnesota '72 chevy pickup. I need to know what junkyard parts I need to scavenge to add power brakes and power steering to my '72. I guess that the 72's already have front disc brakes. Also , it is a 307 2 barrel longbox . Anyone know anything about the 307's ? Any input would be greatly appreciated. Thanks. Last edited by GM_lover; 08-26-2007 at 12:11 AM.

08-26-2007, 12:10 AM	#2
GM_lover Registered User Join Date: Aug 2007 Location: St.Francis , MN Posts: 5	Re: Power steering and power brakes Anyone ??? Anyone at all ???

08-26-2007, 12:15 AM	#3
Brad Out of the carpool lane. Join Date: Jan 2000 Location: Clark Co, WA Posts: 5,673	Re: Power steering and power brakes A '73 & up complete crossmember will bolt up by elongating one hole. Your question has been covered a bazillion and 1 times and if you do a search you'll have more info than you care to have. Again, try a search on the 307's. An interesting note is that someone here was considering doing a stroker 307. Lot's of talk on that post but no one has yet done it that I'm aware of. __________________ 1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red 1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!) 2000 Honda VFR in the faster yellow! 2008 Husqvarna TE-610 1967 C-10 SWB 'Six Appeal'-Gone but not forgotten...

08-26-2007, 10:26 AM	#4
69TowRig Senior Member Join Date: Jan 2005 Location: Raleigh, NC Posts: 894	Re: Power steering and power brakes All you should have to do on the power brakes is add the booster, brackets, and linkage to the master cylinder you already have. Power steering will require the pump, brackets, lines, and box. You do not have to completely tear the truck up changing crossmembers and suspension, etc. The 307 was the "smogger" econo-V8 for that era; more power than a 6 but less than a 350 (of course). I intend to junk mine when I get the chance. __________________ -Chris Building a stripper, one part at a time: 1969 K5, 307, 3spd, 3 seats, hard top. Added Pwr Discs, Pwr Steering, Aux Battery, T-case Skid, Lighted Sidemarkers, HEI, Lock-Right Diff, ECE Class IV Hitch, 32" MT/Rs. Parts to Install: Hand Throttle, Console, Tow Hooks, Dual Horns, AM-FM, Dealer Swing-Away Tire Carrier, Gas Tank Skid. Also building a 1950 Willys CJ-3A and off-roading a 2001 Nissan Frontier on 1-Ton Portals...

08-26-2007, 11:30 AM	#5
shovelhead Registered User Join Date: May 2007 Location: Port Neches, Texas Posts: 61	Re: Power steering and power brakes If I remember right, the 307 has a 283 bore with a 327 stroke. Not a bad motor for a semi-economical daily driver, but there are better choices for hot rodding. My.02 shovel

08-26-2007, 08:21 PM	#6
Brad Out of the carpool lane. Join Date: Jan 2000 Location: Clark Co, WA Posts: 5,673	Re: Power steering and power brakes Oops, I read that as *disk* brakes. 69TowRig is right. __________________ 1968 C-10 SWB, 5.7 Vortec/700R4/3.73 posi, Torch Red 1968 Camaro, 250/Powerglide, all original (No, I'm not gonna drop a 350 in it!...Jeez!) 2000 Honda VFR in the faster yellow! 2008 Husqvarna TE-610 1967 C-10 SWB 'Six Appeal'-Gone but not forgotten...

08-26-2007, 09:48 PM	#7
streetstar Registered User Join Date: May 2007 Location: Moore, Oklahoma Posts: 2,396	Re: Power steering and power brakes A whole lot of trucks out there ran just fine for a long time with a 307. Headers, mild cam, intake swap and a newer set of Vortec heads and it would surprise you. Piston choice is the only limiting factor with one. Its still a small block chevy and the people who claim the 307 is useless have never stopped to think about it . Although its not necessarily a cheap re-build --- they all cost about the same, and 307 pistons may be a bit higher to boot if you have to go all the way with it. The 307 in my '69 with a Holley 600 and aluminum corvette intake , rams horn manifolds and duals, made enough power to keep me in constant trouble with the local constables and have fun racing stoplight to stoplight on cruise night. The 307 is one of those motors that performs big on the street and doesnt do anything on the dyno Last edited by streetstar; 08-27-2007 at 01:39 AM.

08-26-2007, 11:12 PM	#8
6470chevy Registered User Join Date: Dec 2006 Location: tn Posts: 14	Re: Power steering and power brakes just did the swap a few days ago got a donor 73 truck for free torched the front end and bolten it up used a 71 rear to match the 5 lug 1 bolt hole needs to be elongated to make the swap perfect great info in the faq section check it out __________________ 70 lwb (my work in progress) 64 biscayne 250 I6 (5 year old son's) 68 galaxie 500 fastback 390bb (6 year old son's) looking for newborn daughter's (???)



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