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Mismatched parts 5.4l 3 valve block and 2 valve cylinder heads
Edit: I may have my Banks crossed but they cylinder head that says 4.6 is on the driver side and the one that says 5.4 is on the passenger side.
Pulling a 5.4 engine from a 98 E350 box truck engine code L to replace a 4.6 in a 98 f150 4x4 engine code w
Very little history available on the donor vehicle, I do know that it used to run and it ran well, I'm not aware of if it had broken down but I know ever since it was towed it to my property the original owner or I had not attempted to start it again, I was originally under the impression that the battery was dead and the original owner had taken that to charge it but then a lot of stuff happened and he was never able to get back around to it and I've had no need for it until recently.
Just started disassembling it last night, this morning I find this block cast code and look it up and it appears to be a block for a 3 valve 2004 thru 2010 5.4, not exactly sure of the Year range but it is most certainly not a block code for anything from 1998 which I believe were only two valve at that time, and then the cylinder heads that have matching remanufactured stickers but mismatched pairing as Bank 1 says 4.6 and bank 2 says 5.4, both with different mid-90s part numbers that I thought were only two valve in that era, then a mismatched lower intake to an upper intake and I was under the impression that the 5.4 did not employ and imtv valve that is found in the lower intake on a 4.6, perhaps I am mistaken.
Is it possible that the remanufactured cylinder heads were converted to three valve? Or were three valve cylinder heads made in that time? Could a three valve block be converted to two valve? I could see how a 4.6 cylinder head could be adjusted to 5.4 but All the rest of that sounds crazy to me but maybe you guys know something I don't..
What the heck am I looking at???
Block cast
Rf-3l3e-6015-ea
Timing cover
F75e-6c086-ba
Cylinder heads, remanufactured by non oe, barcode #z627017 "DFCH"
The 5.4 2 valve and 3 valve use the same block. The 4.6 and 5.4 2 valve heads are identical, only difference is PI or non-PI. Intakes are not interchangeable. There are 4 intakes - 4.6 PI/NPI, 5.4 PI/NPI.
The 5.4 2 valve and 3 valve use the same block. The 4.6 and 5.4 2 valve heads are identical, only difference is PI or non-PI. Intakes are not interchangeable. There are 4 intakes - 4.6 PI/NPI, 5.4 PI/NPI.
Well I'm 100% certain that it is npi, I just find it an odd combination of parts, though seeing matching numbers on the remanufactured non-oe stickers is somewhat reassuring but I can't help but think something crazy is going on having a 5.4 head and a 4.6 head being used, one being from 1996 the other from 1997 I'm fairly certain that those are going to be two valve but the displacement mismatch remains a concern, is it likely that a common practice is to adjust smaller heads to match larger heads when in the remanufacturing business?
Those are both non-PI 2 valve heads. 5.4 went PI in 1999, 4.6 in 2001. 4.6 and 5.4 2 valve non-PI heads are identical, 4.6 and 5.4 2 valve PI heads are identical. The increase in displacement is only a function of the blocks, 5.4 has taller deck height and longer stroke, bores are identical. You need a 5.4 2 valve non-PI intake. All 4.6 blocks are identical, all 5.4 blocks are identical. That's the advantage of the modular engine.
Those are both non-PI 2 valve heads. 5.4 went PI in 1999, 4.6 in 2001. 4.6 and 5.4 2 valve non-PI heads are identical, 4.6 and 5.4 2 valve PI heads are identical. The increase in displacement is only a function of the blocks, 5.4 has taller deck height and longer stroke, bores are identical. You need a 5.4 2 valve non-PI intake. All 4.6 blocks are identical, all 5.4 blocks are identical. That's the advantage of the modular engine.
Well they certainly look identical, I wonder why they would stamp one with 4.6 l and another with 5.4 l. And I do have the 5.4 nPI intake, it seems I have a perfectly good swap candidate here
Nope. The engine in that truck is obviously not the original engine. It was apparently replaced with a reman using those parts - a 2004+ 5.4 block, a 1996 4.6 head. and a 1997 5.4 head.
Nope. The engine in that truck is obviously not the original engine. It was apparently replaced with a reman using those parts - a 2004+ 5.4 block, a 1996 4.6 head. and a 1997 5.4 head.
Ok, I'm not trying to be difficult so thank you for your patience, I am curious as to why Ford would stamp any displacement at all on cylinder heads if they're the same?
There was another thread elsewhere on this form where I noticed you had told somebody that they couldn't use a 4.6 head on a 5.4 block, I don't remember all the details but I do remember seeing your name on a post that said that, could you clarify for me?
