Chris_1

iTrader: (1)

Hi guys. finally got around to tearing down the block out of this shortbox. Couple of pics below. What I'm wondering about - it's got a double roller chain, that wasn't factory in 92 was it ? It's also got a roller cam setup with the standard 302 firing order - I have heard of that being factory. I'm just not sure if the cam's been changed and that's when the chain came in. This truck only had 108,000 kilometers (that's about 60,000 miles). Little regular cab shortbox (flareside) - no trailer hitch or even a trailer ball, not even any scratches inside the box, so not a heavy hauler. I already advertised it today around here (Ontario) 'cause I already have my 96 block with less miles machined and ready to go.
Just trying to figure out what I can about what I've got. Cylinders look good though, pistons too. I cracked a couple of mains to peek - bearings are showing copper, but the crank looks clean. A little sludged up , but it is 23 years old.




I advertised it for 350 - I figure that's a pretty fair price. I think it'll be a good place to start for somebody who wants to build themselves a motor.
Opinions are welcome, plus I figured it's kind of an interesting thing to post.

redneckfordf2502002

Looks to me like the same t-chain as I have seen on every 302 I have torn apart from 2 88 302s to a 95 bronco 302.
Trav

Chris_1

iTrader: (1)

You can't really see the gears in the picture, they're a double sprocket. All the other stock ones I've worked on have the single wide tooth and there's no center link in the chain. This has 2 separate teeth per link, either side of the center link in the chain. That's not what I'm used to seeing in a stock motor is all, so I had to question it.
The ones you've pulled apart had the double gears ?

redneckfordf2502002

If I remember I will double check but I am pretty sure it does.
Trav

redneckfordf2502002

Just checked and it defiantly is on both engines not sure on the 90s though.
Trav

Chris_1

iTrader: (1)

Thanks for checking - that's a good thing actually. I was wondering if somebody had been messing with this motor at some point for whatever reason. I'd prefer to think nobody has been.

Andree

Hello,

I just rebuilt mine. Look at my thread https://www.f150forum.com/f10/new-pr...reside-295365/

Are you sure its a roller cam? Mine is not. Also if you have trouble pulling the lifters out, there is a special tool for that. Just in case so you dont try to pull them out with pliers or something. :-P

Mine also had the double chain. Ask me anything. I currently have the engine back in the truck and need to finish the AC/alternator brackets, all electrical hookups and the intake and will fire it up.

Chris_1

iTrader: (1)

Yes. You identify a roller cam by that "spider" plate in the lifter galley.
Take a good look at your pics. See those 2 little bumps with holes. Those are for bolting down a spider. That tells you that you have a roller block, with just a flat tappet cam.
That was quite common from 87 on until 92 93 when they started putting roller cams in the trucks too.
Upshot is you could put a roller cam and lifters in, it's a roller cam motor, but otherwise it's just kind of neat to know you have a r/c motor.

Here's a little better picture of the lifter galley with a spider plate in it. Note where the bolt is that holds it down. There's 2 bolts, you can't see the front one. Now look at the pics of your lifter galley.