Ok I pulled the engine out of my ole 65 Galaxie. It was supposed to be a 352 car, but I was told it was rebuilt. So I tore it down. For starters it has 2T stamped on the crank. The bore is 4.00" and the stroke is 3.58". It has flat tops with no valve reliefs. The engine had plenty of power in the car, it just leaked alot so im putting new gaskets in. What Im lost at is it looks to be a 360, but all 360's Ive torn down has valve releifs in the pistons and I thought a 360 had a 4.05 bore. It seemed to wind to high to be a 360 also. Any one have any ideas here?
Thanks

 

Hrm...

A 2T crank is a 360 crank, through and through. Offered '68 - '76 in trucks. However, it's the same thing as a 352 crank. I think you need to check your stroke measurement procedures, it should be 3.5". Someone could have had the crank offset ground, check the rod journal diameter. Check the piston to deck clearance, according to my book it should be .036".

The 4" bore says it is a 352. 360's are 4.050". I'm going to go out on a limb and say someone had it rebuilt and had a 360 crank put in, for whatever reason. It's fine, just kind of an odd crank to have in that motor.

How are you checking stroke?

 

Wellthe 352 has a 4.000" bore and a 3.500"stroke..are ya sure your not off .080" on the stroke?

Russ

 

I have the heads off so thats how Im checking the stroke. Im using a vernier gauge. I even used Millimeters to check myself and its right on 91 mm's for stroke which tansfers into 3.587. Number one piston on top and measuring number 4. I havent checked the piston to deck yet, but it looks really close to 0 deck, but ill measure that tommarow. Also has C3AE rods if that matters any.

 

I'm even confused now! Kurt is right as the 2t crank is a 360 1968-1976 forging. But thats not a big deal. The crank and the 4 inch bore makes a 352. I think the stroke is 3.5 and i think your differenece may be in the deck clearance, I mean you need to subtract it if your measuring from the deck surface.

Now for them rods, everything I have indicates its a short rod. That would leave for one f@#$%^ up piston. Maybe custom made?

10.17-6.488-1.75=1.932 for comp height and clearance.

ok the standard piston is supposedly 1.844 so 1.932-1.844=.088. Umhhhh! theres where that extra .08 stroke may be coming from. (remembering what I said about measuring the stroke)

its a 352!!!!!!!!!!!!!!!!!!!!!!! with a 360 crank

 

So subtracting the deck should give me close to 3.5. Which should make it a 352.

 

I was editing and adding to my post when I think you just replied. If you read it again it makes sense, i think anyway. lol

 

LOL might as well have a chatroom option in here. Well since we established that I got a few more questions. These heads that came off were a C4 and a D2 lol, great match up , anyways, I have a set of C8AE-H's , could I use them, I know they have smaller chambers. I really dont have a desire to tear all the way into this thing, I kinda need it soon as possible ya know

Also btw, can someone explain the pistons to me. Looking at old 352 pistons they had the eyebrows in them. These are true flattops , lol they look like the pistons in my friends 383 Dart, except they have a notch in the front.

 

using the c8's is much better than the c4/d2 mismatch. I can't believe anyone did that. The c8 will raise compression a smudge.

 

well since its a chatroom and i don't see any moderator to stop it, I forgot to mention to check the intake ports or the manifold to make sure they are not bigger than the heads. I know the earlier engines had 2.15+ intake ports and the c8 and d2 have a 1.93 opening.

As for the pistons I have no explanation at the moment.

 

Most FE pistons were as you describe, flat top with "eyebrows". Not that uncommon.

C4 and D2! What a pair! One side was definately making more than the other side...

If I were you, since you already have one C4 head, I'd order another C4 head from DSC (or otherwise procure one) and run both of them on there. They do flow quite well, and you'd pick up some power over what you had. On a 352, they should let it wind up quite nicely. If you're in a hurry, go ahead and run the C8's, then get a C4 for later usage. Even with the mismatch, I think you'll see a loss of power when you go to both C8 heads.

This motor is sounding more and more like a rebuild all the time!

 

I already have a pair of C4's, just figured I could use a little more compression on that motor. I dont think Im following you on the piston thing lol, mine has no eyebrows like I would expect, but anyways. I would rebuild it, but before I took it out it had high oil pressure, and the walls are not even scratched. It never smoked or anything, just had a miss in it like a burnt valve. I beleive it was rebuilt just before I got it, I may have put 5000 miles on it before I pulled it, as for the mismatched heads, I guess someone was in a hurry. What all this is leading to, is in a month or two this car is going to be making some passes on the strip , so Im getting it ready for my brother who will be driving it, b/c Ill be in another car, so Im trying to get it just right for lowend , I dont need it to scream to high on the 1/8th and it already has abundant low end so its job is to beat a mild 350, which one of my friends will be running against it. So 352 vs crappy 350. Almost a confsuing story

 

Dont sell that 352 short on anything..They can make some Dang good hp..

Russ

 

I pull down a 64 Galaxie 352 and the stock pistons were as you said flat, not eyebrows. This was a 352 engine with a 4v intake, all stock, my father had got new in 64.

 

Ok thanks for the piston info, from what I was reading just about all Fe's had some sort of valve relief. Im thinking flatops likethese should do pretty good. Heck I dont think Ford really had a plan back in the day, I know I pulled apart a 64' 390 out of a stock never touched Galaxie and the pistons in it had dishes lol. I think thats what makes FE's so fun, you never really know what your going to get.