1977 302 PCM Engine

Here's a real picture

Like TRB and others have said in the past, it's darker than Grabber green which gets mentioned in numerous posts as being something close.

Paint has held up pretty well for 42 years and lots of hours of use.

KENO wrote: Here's a real picture

KENO wrote: Faceplant wrote: Does anybody have a pic of the green manifolds ? Just curious . If you were to check back later today, I bet you'll see some green manifolds

Ken.
Why didn't you post the picture 4 and a half hours ago?

IMG]uploads/253/pcm_green_exh_manifold.jpg[/IMG]
What else can I do wrong per Ken today?

KENO wrote: Here's a real picture

I think this is a fake unless you include a picture of today’s newspaper in the foreground

Oh my word . That color green on an engine sure is one of those " what has been seen can not be unseen " situations .

No, it’s significantly lighter/brighter than Deere.

Mille1sj wrote: Did they leave the automotive plant the lighter blue then get painted again by PCM?

Quite possibly, the current PCM engines come in painted from the factory - modified to marinize and then repainted (usually wires/electrical components and all ) at PCM. I suspect all marinizers have basically been the same process..

89Nautique2001 wrote: Looks like John Deere Green

Here's a picture of my manifold from 1976 and a piece of metal painted JD green that I took today while doing some paint touch up on a JD tractor

Hardly any difference at all especially when doing touch up on the manifold

Maybe TRB is talking about the 72 Waukesha color being a lot lighter or something?

Maybe there are different shades of JD green

Mille1sj wrote: I know we have been talking paint quite a bit on here but I have a few more engine specific questions. As I started tearing into the engine, I found a few concerns, burnt valve, pitted lash cap and worn rockers. I just dropped the engine off to a friend at his machine shop to take a look at the cylinder bores to see if they need to be opened up. We have been discussing roller cam vs flat tap. I would like to go to a roller if they are even available. So far my search has found nothing for a reverse rotation roller cam. Has anyone found one or are they just not out there. After reading a few other threads, I am going to the GT40 heads.

RH roller cams do not exist in the wild - a lot of money might get you a custom one built. You would do better with gt40p heads than gt40 for less money.   There are some aluminum aftermarket heads that are pretty cheap now as well that seem to be ok.

If you need rockers some 1.7 roller rockers (pedestal mount) for those gt40ps seem to be a good upgrade for the wussy flat tappet rh cams that are available...

I finally had time to get back into the engine repair, I have been trying to figure out what I want to do with the Camshaft. I found a company online (that is actually only a few miles from my house, I had no idea what they did). Its called LSM Engineering Systems, they make custom camshafts for pretty much everything, automotive, racing, agriculture, locomotives, etc. The owner gave me a tour of the facility, I have a lot of experience grinding gears and transmission/axle components and I was quite impressed with the facility.

I dropped my cam off to him yesterday, he is going to scan it and check it out on the CMM. He said he should be able to get back to me next week with a few options, Roller Cam, improved Flat Tappet, or making a new one identical to the original.

He also mentioned changing the firing order to match the 351 (same as the 302 HO engines). Has anyone changed their firing order on a 302?

I'll keep you updated, but if the price is right, I am going to upgrade to a roller.

A good starting point would be asking what your current firing order is.

By 77 marine PCM 302's for the most part had the 351 firing order already. The low performance 165 HP version had the old 302 order and the 185 and 215 HP versions had the 351 firing order. The change in cars came later.

Since he's gonna scan it, if you were to post the specs here on CCF, it would help others and it would probably help him get business too especially if he can make a reasonably priced reverse rotation roller cam for you.

If you do have the low performance 302, you can read about a variety of reasons for the firing order swap on the internet. Some "reasons" make a lot more sense than others but Ford changed it, so why not go with the new firing order?

Mille1sj wrote: I will ask him for the specs when I hear from him next week. The tag on my engine says the firing order is 18456273.

That means you already have the 351/late 302 firing order, no need or reason to change the firing order

We discussed it a few times, That was partially why he wanted the original cam so that he could verify the gear direction and to scan the profiles. He said he has done reverse rotation before primarily for racing boats with dual engines that have one standard and one reverse rotation.

It's been a while sine I updated this thread. I picked up the new Reverse Rotation Roller Cam from LSM Engineering this week. I can now continue with my rebuild, get the cam in and measure push rods.

I should get some good horsepower gains from the changes.

Roller cam ground for slightly better low end torque and wider power band, I dint go too aggressive on the grind.
Upgraded to GT40P Heads
Roller Lifters
Roller Rockers
Block was line bored and honed
Block bored .030 over
Hypereutectic Pistons
Original Dual Diaphragm mechanical fuel pump rebuilt by Then and Now
New water pump
Rebuilt Sherwood Water Pump
Still looking intake manifolds

Cost was $550, I didn’t think it was too bad Considering the costs others said to expect. The original distributor gear should work fine for it.

Gary, $247 for RR custom grind FLAT tappet from Comp Cams.   Cam only