|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
08-30-2022, 06:43 PM | #1 |
Senior Member
Join Date: May 2010
Location: South Texas
Posts: 1,631
|
Cast 4 1/8 pistons?
While looking at my crankshafts I recently realized one of my 4" Merc cranks is offset ground with rod journals sized to standard prewar Ford. I concluded I have a 4 1/8 stroke crankshaft. I have rods and rod bearings for that setup, but not pistons. Looking around the internet all I find is forged pistons for that stroke, typically with a hefty oversize on the bore. Does anyone know where I can get reasonably priced cast pistons for 4 1/8 stroke, preferably with bore less than 0.125 over?
Thanks, Fred |
08-30-2022, 08:18 PM | #2 |
Senior Member
Join Date: May 2010
Location: Alabama
Posts: 3,263
|
Re: Cast 4 1/8 pistons?
I’ve got a 4 1/8” crankshaft in my 40 with 3 3/8” bore . Bought pistons from Ross.
|
Sponsored Links (Register now to hide all advertisements) |
|
08-30-2022, 08:23 PM | #3 |
Senior Member
Join Date: Dec 2013
Location: Minnesota, Florida Keys
Posts: 10,321
|
Re: Cast 4 1/8 pistons?
It's a long shot, but I got some discontinued oversize pistons cheap (closeout) from Speedway Motors several years ago. They weren't listed in their catalog or on-line, but they had 'em.
They seem to have been left with the "unusual" sizes. |
08-30-2022, 09:49 PM | #4 | |
Senior Member
Join Date: May 2010
Location: NJ
Posts: 6,182
|
Re: Cast 4 1/8 pistons?
Quote:
I'd give Egge a call. I believe they can do special order stuff. I doubt they stock a 4 1/8" stroke piston, but it shouldn't be hard for them to make one. A custom sized set of Ross pistons cost me $675 without rings, so I'd assume Egge would cheaper. |
|
08-30-2022, 10:38 PM | #5 |
Senior Member
Join Date: May 2010
Location: Eagle River,Alaska
Posts: 353
|
Re: Cast 4 1/8 pistons?
When I got my 4 1/8" pistons from Egge, they were a common in stock item. That was about 10 years ago though.
|
08-30-2022, 10:56 PM | #6 |
Senior Member
Join Date: Apr 2019
Location: Kansas
Posts: 926
|
Re: Cast 4 1/8 pistons?
Sponsored Links (Register now to hide all advertisements)
Terry
__________________
"It don't take but country smarts to solve the problem" (Smokey Yunick) '41 Merc Town Sedan / 260" 8CM engine '66 Fairlane four door / "warmed up" 302 |
08-31-2022, 10:21 AM | #7 |
Senior Member
Join Date: Dec 2012
Location: Anchorage Alaska
Posts: 291
|
Re: Cast 4 1/8 pistons?
I called all around looking for .080 pistons for 4 1/8 stroke and found nothing about a year ago. I didn't want forged, and I didn't want to bore the block again so it's all sitting on the shelf waiting.
|
08-31-2022, 10:27 AM | #8 |
Senior Member
Join Date: May 2010
Location: Chester Vt
Posts: 8,862
|
Re: Cast 4 1/8 pistons?
I don't like to use Ross pistons in a street engine, but you don't have much choice now days. On my 296ci engine I foumd a set of steel strut piston 4 ring pistons at a flee market for 50 bucks. Fit the pistons with .0015/.002" clearance/ It was still running 10 years later when replaced with a 294 ci Blown engine.
I offered to refresh the original engime engine , but the owner said it didn't use a drop of oil, so now it's a spare. be nice if someone like EGGE would make oversize pistons in the strker version . But no market. Gramps. |
08-31-2022, 01:03 PM | #9 |
Senior Member
Join Date: Dec 2010
Location: East Coast in CT
Posts: 1,530
|
Re: Cast 4 1/8 pistons?
Egge should be able to supply the stroker pistons your looking for and as Tim wrote they will be a lot less money than forged. Custom sizing usually is not a problem for Egge.
Ronnieroadster
__________________
I use the F word a lot no not that word these words Flathead , Focus and Finish. "Life Member of the Bonneville 200 MPH Club using a Ford Flathead block" Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline. First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH |
08-31-2022, 03:28 PM | #10 |
Senior Member
Join Date: May 2010
Location: Chester Vt
Posts: 8,862
|
Re: Cast 4 1/8 pistons?
Having done business with Egge for over 30 years, they are not very helpful. I wanted ONE (!1) .020 3 5/6 x4 piston , but I had to buy 4. I asked why, and never got a straight answer so I bought 8 and all te cylinders. Now I have a set of 3 5/16 x 4 pistons for something I\ll probably never bui;d/
This is one of many good reasons I don't build enigmas anymore, and most shops are closed. Thise that are still in business, won't build a flathead, but TG they'l do mschine work, like boring millimg heads and valve jobs. But they'er not cheep Gramps Sorry about the spelling, can't see any more either. G |
|
|
Sponsored Links (Register now to hide all advertisements) |
|