New ZZ4 coming have questions?

[Z10]

I finally had enough of the smoke and the leaks of what is suppose to be a 400 sb in my 72 GMC and I've got a turn key ZZ4 on a truck somewhere between Nebraska and West Texas. Now I have a couple of questions:

1. What shorty headers fit these trucks, (brand part #)
2. What fittings will I need to attach my old power steering lines to the new metric power steering pump?
3. What issues will I encounter when I switch from a TH350 to a TH700R4?
4. What else am I missing?

[hugger6933]

Just about any header should fit it as long as they are compatable with the vortec head, try to get some with the thickest flanges you can find. Lee manufactureing is the ones that makes the metric to older style fittings. And the the last on the list is you will need a T.V. cable to hook up to thew carb from the 700R4 to adjust line pressure it is of the upmost of importance that it be adjusted properly or the trans will not last. Enjoy your newfoud power! .Jim

[pat 70/71]

For starters you are going to love that motor. I have one in my 65 nova coupe and its a runner. When you can get the hot cam& ratio rockers Chevy offers (really wakes the motor up. I run Sanderson headers on mine, thick flanges(never leak) mid block type (block hungers) no starter issues at all. Run a mini starter if you can. I run mine with a 350 trans so can't help there. I just know you are in for a treat my friend, enjoy! Cheers, Pat
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[Z10]

Originally Posted by pat 70/71

For starters you are going to love that motor. I have one in my 65 nova coupe and its a runner. When you can get the hot cam& ratio rockers Chevy offers (really wakes the motor up. I run Sanderson headers on mine, thick flanges(never leak) mid block type (block hungers) no starter issues at all. Run a mini starter if you can. I run mine with a 350 trans so can't help there. I just know you are in for a treat my friend, enjoy! Cheers, Pat
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Pat, thanks for the advise on the headers. There is a reason I choose the ZZ4, I've had one installed in my 69 Camaro for about 7 years now. Night and day difference between it and the old L48 350. The engine has been flawless. I even get 17mpg running it in front of a M20 4 speed and 3:31 rear. I'm hoping the 700R will out perform the TH350 with better MPG.

[Z10]

Originally Posted by hugger6933

Just about any header should fit it as long as they are compatable with the vortec head, try to get some with the thickest flanges you can find. Lee manufactureing is the ones that makes the metric to older style fittings. And the the last on the list is you will need a T.V. cable to hook up to thew carb from the 700R4 to adjust line pressure it is of the upmost of importance that it be adjusted properly or the trans will not last. Enjoy your newfoud power! .Jim

Jim, thanks for the TV reminder and the Lee info.

[hugger6933]

You can also screw out the pressure regulator out of the back of the power steering pump and put it into your new pump ending the need for the adaptor for the lines. I had some Sanderson headers on a V-8 S-10 that were a little hard to work with but it may have been the fact that it was a V-8 in an S-10 not the makers of the header. In their defense I will say the flange was nice and thick and it was a very well built header.

[gearys 5600]

I have the Sanderson cc-11 headers on the zz4 engine in my 69. Works great..

[Z10]

Originally Posted by gearys 5600

I have the Sanderson cc-11 headers on the zz4 engine in my 69. Works great..

What a great looking engine! Thanks for the info and part number on the Sanderson's.

[wahl4m]

yes the sanderson headers is the way to go !!! i put a zz4 in my 65 carryall w/400 turbo ! only 1 problem- may i recommend some kind of locking nut on the collectors and always use the copper gasketson the collectors and carry spares ! seems like anything but a lock-nut of high quality will vibrate loose on them collector bolts !!

[gearys 5600]

Originally Posted by wahl4m

yes the sanderson headers is the way to go !!! I put a zz4 in my 65 carryall w/400 turbo ! Only 1 problem- may i recommend some kind of locking nut on the collectors and always use the copper gasketson the collectors and carry spares ! Seems like anything but a lock-nut of high quality will vibrate loose on them collector bolts !!

x-2 !!!!!!

[Z10]

Originally Posted by wahl4m

yes the sanderson headers is the way to go !!! i put a zz4 in my 65 carryall w/400 turbo ! only 1 problem- may i recommend some kind of locking nut on the collectors and always use the copper gasketson the collectors and carry spares ! seems like anything but a lock-nut of high quality will vibrate loose on them collector bolts !!

Thanks for the tip.

[jhyder408]

Originally Posted by wahl4m

yes the sanderson headers is the way to go !!! i put a zz4 in my 65 carryall w/400 turbo ! only 1 problem- may i recommend some kind of locking nut on the collectors and always use the copper gasketson the collectors and carry spares ! seems like anything but a lock-nut of high quality will vibrate loose on them collector bolts !!

i smear a thin coat of ultra copper sealant on my header gaskets and collector gaskets and never a leak

[Z10]

Originally Posted by jhyder408

i smear a thin coat of ultra copper sealant on my header gaskets and collector gaskets and never a leak

Thanks for the tip

[Z10]

I put a little color on the new ZZ4. Shiny stuff to come soon.

[towbar]

I had a ZZ3 in an 85 Monte SS back in the early 90's and that sucker was a runner!! With the 3:73 rear gear, it surprised many mustangs and GN's back in the day! youre gonna love that sucker!!

[mvesr]

Where did you get the ZZ4?

Thanks-Mika

[Z10]

Originally Posted by mvesr

Where did you get the ZZ4?

Thanks-Mika

Friesen Chevrolet in Sutton, NE. They were actually a couple hundred less than the big guys and free freight.

Could have bought it closer but avoided sales tax using an out of state supplier. Which would have been about $400.

I think they had a couple more in stock.

[dan42]

I have the ZZ4 with the Tremec 5 speed - I love it! I am going to change the gears to 4:11's, though, I have 3.73's right now and in 5th I'm around 2000 rpm at 80 mph.
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[Z10]

Finally got to work on the engine today. Serpentine system on and valve covers. Aluminum pan is next. That's "Hank" in the back ground, my buddy's 58. [IMG]http://i20.photobucket.com/albums/b213/wtz10/Mobile%20Uploads/72%20GMC%20Step/IMG_0231.jpg[/IMG[IMG]http://i20.photobucket.com/albums/b213/wtz10/Mobile%20Uploads/72%20GMC%20Step/IMG_0228.jpg[/IMG[IMG]http://i20.photobucket.com/albums/b213/wtz10/Mobile%20Uploads/72%20GMC%20Step/IMG_0229.jpg[/IMG

[Z10]

I just ordered a GM certified 700r4 for a 90 Corvette Friday, so things are coming along. Still trying to decide if I'm going Fuel Injection or use the Holley.

[eldogg]

Check out Hedman's new c10 mid length headers part #69010

[Z10]

Originally Posted by eldogg

Check out Hedman's new c10 mid length headers part #69010

I'll check them out. Thanks for the part number.

[70cst]

Hey Z10 ...

Sweet truck and one bad %%% looking motor. Your truck is going to rock

[Z10]

Originally Posted by 70cst

Hey Z10 ...

Sweet truck and one bad %%% looking motor. Your truck is going to rock

Thanks, I started to get excited about getting it back on the road.

[GASoline71]

I dig those aluminum valve covers. Even though they are centerbolts... they still look period correct for an older rig. Nice!

Also... if you do go with the MSD Atomic FI, I'd definately like to know how you like it. I've been pondering that FI setup for a '70 GMC 2500 project.

Gary