Stroker Motor
Thread Starter
|
Freshman User
Joined: May 2004
Posts: 45
Likes: 0
Split from the TMI 400 project thread:
Lets see if I get this right. 4 in bore & 4.25 in stroke = 427 cu in? Is this practical? I thought the 4 in stroke was all you could get out of the block.
Originally Posted by TMI
Next I would like to build a 4.250" stroke 400.
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
How about 4.060 bore x 4.25" bore for 440 cu inches. There have been 400s which were bored and stroked to 432 cu inches (4.17" stroke). To my knowledge no one has done a 4.25" stroke, but it is possible.
Elder User
Joined: May 2002
Posts: 526
Likes: 0
From: Sin City, USA
Originally Posted by danlee
How about 4.060 bore x 4.25" bore for 440 cu inches. There have been 400s which were bored and stroked to 432 cu inches (4.17" stroke). To my knowledge no one has done a 4.25" stroke, but it is possible.
--J
Postmaster
Joined: Aug 2001
Posts: 4,270
Likes: 5
From: Delaware
Eagle and SCAT make a 4.25" forged crank for a Windsor. You could use a 6.25" chevy rod and a TRW forged piston for a 351M. You might have to take a little off the piston and bush the rod. A longer rod and shorter piston would be preferable, but this should be cheap and reliable.
Thread Starter
|
Freshman User
Joined: May 2004
Posts: 45
Likes: 0
This could be fun. Brought out the calculator and it says 4.06 Bore and 4.14 stroke give 429 cu in. Pop on some boss heads and you'd have a lighter Boss 429? That would be interesting in a Mustang (not exactly F.T.E. item but the mind never stops working, well almost never.)
Elder User
Joined: May 2002
Posts: 526
Likes: 0
From: Sin City, USA
Originally Posted by culiv
This could be fun. Brought out the calculator and it says 4.06 Bore and 4.14 stroke give 429 cu in. Pop on some boss heads and you'd have a lighter Boss 429? That would be interesting in a Mustang (not exactly F.T.E. item but the mind never stops working, well almost never.)
--J
Trending Topics
Elder User
Joined: May 2002
Posts: 526
Likes: 0
From: Sin City, USA
If you gotta have a bigger Clevo, I'd go with a Eagle 4.25" crank and a 4.04" bore for a 436. If I wanted to spend another $15K for a 400, I'd go with a custom 4.33" crank and a 4.06" (or larger) bore, in a sleeved block, for a 448ci+ engine.
Since we are sorta talking "what ifs", I'd like to see someone come out with a 400 type block with W/C bellhousing and motor mounts, taller lifter bores like the roller cam Windsors, Windsor oiling, 0.20" max overbore capacity, and a 4.4" stroke capacity. You could build one heck of a motor with that......about 488ci (8ltr)! Could you see the look on the Chevy guys face when they are bragging about their 7ltr SBC and you pull out a 8ltr Clevo! That would be priceless. Sad thing is, I'm ready and able to drop cash on a block like this but I doubt any of us will see this come to market.
--J
Since we are sorta talking "what ifs", I'd like to see someone come out with a 400 type block with W/C bellhousing and motor mounts, taller lifter bores like the roller cam Windsors, Windsor oiling, 0.20" max overbore capacity, and a 4.4" stroke capacity. You could build one heck of a motor with that......about 488ci (8ltr)! Could you see the look on the Chevy guys face when they are bragging about their 7ltr SBC and you pull out a 8ltr Clevo! That would be priceless. Sad thing is, I'm ready and able to drop cash on a block like this but I doubt any of us will see this come to market.
--J
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Elder User
Joined: Feb 2000
Posts: 775
Likes: 0
From: Temperance,MI
Thread Starter
|
Freshman User
Joined: May 2004
Posts: 45
Likes: 0
Originally Posted by culiv
This could be fun. Brought out the calculator and it says 4.06 Bore and 4.14 stroke give 429 cu in. Pop on some boss heads and you'd have a lighter Boss 429? That would be interesting in a Mustang (not exactly F.T.E. item but the mind never stops working, well almost never.)
Originally Posted by 73XAFalcon
Boss 429 heads won't even come close to fitting. Different bore spacing: 385 Series is 4.9", 335 Series is 4.38".
Elder User
Joined: May 2002
Posts: 526
Likes: 0
From: Sin City, USA
Originally Posted by culiv
Wasn't talking about Boss 429 heads, was talking about Boss 351 heads (1971-72).
--J
Thread
Thread Starter
Forum
Replies
Last Post
cruz76
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
16
Oct 19, 2016 05:35 PM
71dusterdan
Small Block V8 (221, 260, 289, 5.0/302, 5.8/351W)
72
Mar 13, 2008 07:55 AM
TMI
Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
5
Aug 9, 2006 05:48 PM
TMI
335 Series- 5.8/351M, 6.6/400, 351 Cleveland
8
Jun 7, 2006 07:59 AM