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Fe 410 bored to 428
Can this be done, has the block got enough meat to allow this.
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Sure why not
docfe Doc why not stay with the bore you have and go with a stroker kit? 4.25 with BBC rods. If you want to bore out the block that big, have it sonic tested first. Some guys on this forum have lost blocks to this procedure not being done first. The other issue is where did you get the block from? Was it a pump motor? boat motor? U-haul? Sonic first before any boring.%/. After boring build yourself a nice stroker. Rick L.
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ya always gotta stroke 'em before ya bore 'em..:eek: I thought everyone knew that.:D
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I'd just do a clean up on the bores and throw a big crankshaft in it. A lot of blocks will go to a 4.130" bore, but there's really no use.
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The only reason I thought about boring, was because the block has 0.017" wear.
The 428 crank in it is real good. I picked up the eng & trans in Vegas while on holiday last year. Coming over again next month, I will buy eng kit Doc. |
You will bore.....but probably to the next size, .020" or .030". Boring it to a 428 bore (4.130") is a big step.
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Are you doing the rebuild??
docfe Doc Do yourself a favor and get a rotating assembly from either Barry R at Survivalmotorsports or KeithCraft Racing. You need the correct size of the bores so they can get you 8 custom pistons for the block. Have the assembly balanced. You will get a kit of crank shaft, rods, pistons, bearings, rings, and assembly lube for installing. IMO this is the BEST way to rebuild your motor. You have not said anything about the top end of this motor? What heads, camshaft,( this is the biggest decision),intake and carb or FI system. This motor with the stroker kit will make a good 500ft of torque with a mild cam in the .550" lift. Kieth Craft sells some custom hydro roller camshafts that make good power and give you that lumpy idle if you are looking for it. This will allow your motor to spin to a 6,500 rpm range. IMO I don't spin my stroker past 6,200 rpms. What trans and rearend ratio are you putting in this car. This also has a large effect on how the car will preform. It's IMPORTANT that your machinist know the in and out issues an FE motor has and improvements needed to extend the life of your motor.%/:) Rich L.
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Thanks for your replies, living in New Zealand its harder to get the info & parts locally.
I have spoken to my Machinist again, and now will bore to 0.020" over The trans I bought with eng is the C6 I was going to tidy up the 410 heads, & refit. I am still deciding on Camshaft, Intake & Carb. Thanks from Kiwi Unsure. |
If you want a nice street driver, you can use what you have. You'd have to go .080 over to get to 4.130, but some blocks have enough meat to do this safely. Do an ultrasonic test for wall thickness, or just go .030 for a nice street FE.
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Just came upon this thread and a couple of questions come to mind.
What is it you are expecting to get out of this motor? (How will it be used-track, street, combination...) The 410 IS a "factory stroked" 390, so I tend to think the thoughts on boring concerns are spot on, but I feel the expence to stroke it vs. the benefit will be lost without investment in the "upper end" of the motor. Personally, I would suggest going with upgrade heads, valvetrain (including rockers which can be a weak point on these motors[see my gallery to see what can happen when the rocker shaft breaks:CRY:) cam & intake. It sounds like you are already going to bore .20 so you will be getting new pistons and you might as well go with an H-beam lighter/stronger rods at the same time. You already have a 428 crank. good luck, Mike |
I would conserve the metal and bore only what you need, that way you keep the block longer, after all this thing has survived this long !!!!
The marginal CI between 410 and 428 (< 5%) is not (IMHO) worth the life shortening possible block destruction. tell them it is a full 7L ford. --you will be mostly correct. You would not beleive how many 390FEs we see here at the ranch that were sold to someone as a 428, or a CJ. Happens a few times per month. Steve |
I apreciate the help. I am going to be in N Y, N J, V I, N C & S C next month.
Any suggestions where I can pick up 0.020" Pistons, Rods, Cam & Valve gear. Nobody down here wants to know about FE bits. Thanks again, Doc. |
Doc- let me look up a part number and see what is available.
-- do you want a stockish .020 piston or something else >? once we establish what you need, I am sure someone has a set or can get them before you zip over here this next month. --Steve |
Sounds like I must be the only test case for this. I got my 410 out of a 67 Mercury. The story I was told was that it was an engine used only by Mercury for the Maurader? and one other boat of a sedan. The nice thing was that it had the correct casting numbers on the block so I rebuilt the entire engine, changed the heads to match the ports on a factory PI intake, put in a CJ cam, and ended up with a nice factory looking setup. I had the assembly balanced and the walls checked and all was found to be ok. This was done in 93 before the internet and alot of the current stroker motors. I recently resumed the construction of my EM kit and hope to have it done by the end of the year. No real time on the engine other than the ocassional startup to keep the fluids running. The stroker is probably the way to go, but I had to have a PI 428 in my car. Good luck with your choice.
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Steve, Stoke pistons will be fine, but if anybody can tell me a source
for these parts, great. mjh, I was told this eng of mine was in 67 Gran Marque ? I was thinking of a Cam ( Hot street ) I made contact with Kanter Auto Products in N J, but they dont sell oversize Pistons or non stock cams. I'm sure all you Knowledgable guys will, steer me in the right direction. You guys are lucky, don't have to go far for your gear. Ricky, what would a set of BBC rods cost ? Cheers - Doc. |
MJH- My 410 has a C6ME block casting # and indeed came out of a Mercury Marauder.
the thing we have to watch is the piston pin height as the 410s used a piston .100" further up on the piston vs. the 390 piston. So if you use 410 pistons in a 390 crank, you will have LOOOOOWWWWWW compression , if you use 390 pistons with a 410-428 crank, you will need to check clearance to the cylinder heads or risk interference issues and diesel like compression ratios. Ford used the 410 pistons in the 390 engines to make industrial FE applications (7.5:1) --Steve |
Quote:
This is a killer special Keith is offering on his web site, a forged crank too.. You can probably get a scat cast crank package with I-beam rods for 3 or 4 hundred less. Other board vendors can help you too. Special #4: Ford FE Steel Rotating Assembly - $1,995.00 KCR 4340 Steel Crankshaft Plasma Moly Rings KCR 4340 H-Beam Rods Federal Mogul or Clevitte Bearings Diamond Pistons Cubic Inch determined by the customer Dave |
If your looking to do a inexpensive street build the 390 "truck" pistons use the same compression height (1.660 in.) as the 410.
Such as Federal Z381 http://store.summitracing.com/partde...0&autoview=sku 390 car uses 1.759 in. height http://store.summitracing.com/partde...0&autoview=sku |
I totally agree w/recommendation to talk to Keith. Great guy!!
Since a 410 is 4.05" bore (like the 390), why not go +.030" overbore? There is a bigger selection of 4.08" pistons to go with the stroker cranks. And if you go with a stroker crank, you already have a 3.98 stroke, why mess w/4.125, why not go with the 4.25 and you'll have a 445? A +.030 390 block should be fine; most 390's will take up to a +.060" overbore w/o sonic testing, but I wouldn't go any farther than /060" w/o sonic testing. IMHO. Keith can fix you up w/stroker crank, I-beam or H-beam 6.700" rods (BBC) and correct pistons, all in one neat package. |
I thought the 410 engines used 360 pistons?????????? for the pin height and compression........
David |
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