What about a 3fe head on a 2f block/h55 setup? I hear great things about that combo.
How NOT to restore the FJ40
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inkpot
SILVER Star
This one is much harder than a Chevy v8 swap. BTDT
Well, interesting, I've spoken to a couple of good parts suppliers here and can find no referance to dome top pistons.
Listings from manufacturers 'Precision" and 'Acl' show 20, 40 and 60 thou and 50, 75, 1.0 and 1.5 mm oversize flat top pistons..
I went to a toyota dealershipwho gave me the part no's for early pistons #1310361010 and 80 to 86 #1310761011..
But no specific p/n for 75-80 which would indicate a different piston (dome)..
A domed piston is usually from a higher compression motor isn't it?
My own 40 has a 2f from a 60 series which when pulled down for rings and bearings I found it had 1.5mm oversize pistons and still the faint shadow of a bad cylinder score..
So with the overbored motor and a re built head, phew, did that 40 go...
Btw.. your photos dont show the piston tops..
Gaz...
Last edited:
crushers
post ho
i agree, the 2FE conversion might be a decent option ... if the customer has the budget.
otherwise pitch this block and start the rebuild with a decent donor ... at least you can get the parts and the truck stays as is.
no?
otherwise pitch this block and start the rebuild with a decent donor ... at least you can get the parts and the truck stays as is.
no?
If one were to go through all that trouble with the shortblock of the 2f, why wouldnt you just turbo anyways?
A 2FE Turbo in a 40? 
Is there such an animal?
Is there such an animal?
Is there a reason 'cylinder head stitching' can't be done on these heads? Or has it just been the cost, up to this point ?
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The cracking can be widespread & spidery. It is on the top of the head above the exhaust ports, often extending from a core plug hole out beyond the VC to the edge of the head. Welding or pinning is not a good solution. Actually, I am unaware of a solution, other than replacement.
Ah, I understand. I've never seen one like that.
I can just imagine what else you will find going forward on this one. When I rebuilt the engine in my 79 about 4 years ago pistons were impossible to find back then too. I work in auto parts and none of our suppliers had anything, my machinist couldn't get anything, and I wound up buying 6 .40 over dome pistons from SOR. They were the only place that had any and they only had 7. The biggest mistake I made was I also needed a new head and I got that before looking into pistons. The head I bought needed everything so I had a small fortune into it. Then I couldn't find pistons. Had I known that was going to be the case I would have gone with a later head and flat tops.
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Good news! A mudder is mailing me a set of pre-loved 1mm pistons he took out of a 1975 parts engine.
We'll see how they look next week and go from there.
We'll see how they look next week and go from there.
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Exactly like that. And then the crack will propagate out beyond the VC rail and go to both of the AIR ports.
That area above the exh ports just gets too hot on these heads. IDK if it is a lack of coolant flow, or elevated combustion temps or what. But it's happening on engines that are well cared for and have not been overheated but are simply old.
That area above the exh ports just gets too hot on these heads. IDK if it is a lack of coolant flow, or elevated combustion temps or what. But it's happening on engines that are well cared for and have not been overheated but are simply old.
This happened to me on a 3FE head. Cracked between #5 & 6 cylinder, from the air port all the way over to the core plug. Machinist believed it was due to poor casting when it was originally made. The engines was running great....no overheating, no coolant in the oil, no funky exhaust, but when I went to do a valve adjustment I found the crack.
77mustard40
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Glad you chimed in CB, I was thing of your ordeal this spring while reading this.
Reading this I'm thinking of passively looking for a late model 2F or 3FE to go through at my leisure and have ready to go when the day finally arrives.
Reading this I'm thinking of passively looking for a late model 2F or 3FE to go through at my leisure and have ready to go when the day finally arrives.
Wow. Thanks for posting, Poser ...
94SRUNNER
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Any updates on the 40 Jim?
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Waiting on the UPS truck to deliver pistons today. The block is already chucked in the boring machine, just need to measure piston OD and bore holes to fit.
More updates as it goes back together and other problems are chased down.
More updates as it goes back together and other problems are chased down.
