Hello all,

I was looking to switch from V-Belt to Serp. Only problem is I do not like the looks of the $1200 dollar billet kits. I was able to grab the AC mount, Alt & Power Steering mount, Power steering support bracket, power steering pump, tensioner ect. Off of a 1994 CK2500 a friend was scrapping. Only issue I see thus far is the original Water pump is the short style, the CK had a long style. If this will work I'll just order new long pump when I order idler & tensioner pulleys.

So given all that info, does anyone know if I will run into a clearance issue with the long style water pump? I know they have stock C3s with 454s which I assume are the long pumps? Any help in the matter would be appreciated.

Thanks,
Rob

 

I have no clue as to alt/comp placement much less hood clearance.... but I have a '88-91 C4 with air pump eliminator pulley....

and electric fans..... are necessary because the old mechanical stuff is, well, crap......

I dunno about BBC setups....

 

Oh I completely forgot to mention, it would be going into a 1979, using a 383 for now.

I was debating on going with an electric fan set up, but wasn't sure if it would ultimately be required. I should be good on hood clearance, I'll be using a high rise hood, currently it looks like the alternator will be sitting even with the top of valve covers, if not it should only stick up slightly.

 

I'm pretty sure that the truck systems don't clear the hood. Also, you'll need a reverse rotation water pump.

 

Here is my parts list. Installed in 78 Corvette.

https://www.corvetteforum.com/forums...n-my-78-a.html

You will need to reverse one item (10129569) it hits the passenger side upper control arm, and then you will need ~ 1" longer belt.


GM kit 12497698
Serpentine Accessory Drive System (with Air Conditioning)
Fits Gen I-style eng


The system includes:
10055800 Secondary Air Injector Pump Bracket
88964863 Air Compressor Assembly (CR4)
10129569 Idler Belt Pulley Bracket
19201601 Water Pump Kit
10055880 Water Pump Pulley
10055879 Crankshaft Pulley
19152464 Alternator Assembly – 105 AMP (reman)
88987962 Alternator Connector (with lead)
10055798 Drive Belt Tensioner Assembly
88986814 Belt (fan, water pump, A/C, power steering pump, and alternator)
10105212 Alternator and Power Steering Bracket
19319858 Power Steering Pump (reman)
12605677 Power Steering Pulley

 

Ty all for the responses!

I will definitely have to check that kit out!

Cago, did you have any issues with clearance on harmonic balancer pulley? That was one other concern I had while I was staring at the block, thinking, "gahhh I don't want to use vbelts."

 

With the stock ZZ383 engine / Balancer /pulley in place I have 0.35" clearance. The tighest spot on the driver lower side. I also have no hood clearance problems using the stock hood. Complete with AC compressor.

The other thing to change is the upper rad hose. Some route similar to stock passing on the right side of the alternator. I went behind and to the left of the alternator. I didn't need the extra heat from the hose blowing over the alternator. I used a upper rad hose from a 1995 Ford Bronco and cut the tip at the radiator side. ( extra elbow and larger dia than required.) once you cut the extra elbow off the dia is just about right to fit the radiator.

You will notice that the stock air duct ram also fits to supply some cooling under the hood.

 

Truck system fits my '79 with a minimum of 5/8" clearance, can't remember if that's over the A/C compressor or the tensioner. All else clears greater than 3/4". Just get the pump from same application as the serpentine setup, its reverse rotation. I made my own radiator hoses with a Speedway Motors kit, not real cheap but you make it fit perfectly with no chafing. IDK how it would fit with a factory shroud, I have electric fans.

 

Here's a March serp belt that I paid about $600.

 

Same here, no issues.

 

I used a complete serp set up off a third gen camaro on my 80 vette. Got it off ebay for $250. Used the alt, ac, ps and the water pump that came with, and they are all still working three years later.

 

Excellent

The serpentine set-up from a 4.3 V6 in the trucks will work too, it's the same as the V8.

 

Sweet, thank you all! I started the cleanup of those old brackets today, I'm looking forward to add a new look to the front of the block.






Who cares about Miles Per Gallon? Pffft, it's all about Smiles Per Gallon!

 

I did this and used a setup off of a 92 Camaro for my 79 vette. While that would not exactly be the same, I thought I would provide this summary just in case you have similar issues to deal with. The following is from a post I made a couple months ago when this subject came up:

In the interest of full disclosure, the GM setup does require some adjustments - so expect some work necessary to make all the parts come together. I would still do it again - none of these are big problems, just a nice little list of "to-do's" that you may want to be aware of.

Here is a summary of what I dealt with:
•I switched over to the Camaro power steering pump (not required, I just needed a pump anyway and I got one with the correct pulley) - If you do this, take the inlet fitting from your old PS pump and put it on the new one, so your PS hoses still bolt up. Either steering pump will work. The C3 pump from a 79 will bolt into the Camaro bracket. You have to change the pulley. In my case, I found a pump for a camaro (with the pulley) so I just used that.

•I had to experiment with water neck and radiator hose combinations to avoid rubbing on the belt. I found on that pointed straight forward and looked for a suitable hose at a local parts store.

•The lower rad hose is the stock hose, but required trimming and may sit tight against the lower cross member.

•You will have to convert to the later style alternator (CS130 or similar). I used a pre made pigtail from Summit to ease the conversion.

•I used the water pump for a 92 Z28.

•If you have AC, you may need a later pancake compressor. I was not able to convert my stock C3 pancake compressor to a serpentine pulley. Going with a later AC pump may also require an adapter to the older style AC hose block. AC specialists can set you up with an adapter. I called Classic Auto Air and they set me up with a washer/adapter kit that works well.
If you don't have AC just run the AC delete pulley.

•The air pump delete pulley is not required, and I didn't use it. If you choose to run it. You may need to clearance the bracket and flip it over. The long straight run between the AC compressor and crank pulley has not given me any problems.

• I also had to reroute the fuel line - if you go with hard lines, will take a little massaging to ensure you don't rub anywhere. I still ran up the front of the block, but you have to work around the brackets so stock line won't work. Not hard, just took a little patience.

•Stock 92 Camaro pulleys all worked and cleared the crossmember - you mentioned underdrive pulleys, and other members have used them. I did not need to go that route.