New 402 c.i. Flathead
Lead Driver
Joined: Aug 2006
Posts: 8,093
Likes: 653
From: Brentwood, TN
Might be interesting in an open bay roadster where the look of the engine adds to the overall appeal of the car...but in a truck, if I wanted an original flathead then that is the way I would go. $30K would buy a lot of wheels, paint, and interior work.
Senior User
Joined: Jan 2013
Posts: 317
Likes: 0
From: NW Ohio
The lack of rocker arms means the valves will only lift what the cam is ground for. I can see why guys mod flatheads to make them better, Ardun, aluminum block etc. I cant see why you would take a windsor and go backwards
Post Fiend
Joined: Jun 2001
Posts: 7,493
Likes: 7
From: Erie, pa
Then you need to learn more about Flatheads - There is a reason that they are still sought after and used 81 years after they were first produced.
Post Fiend
Joined: Mar 2007
Posts: 5,776
Likes: 2
From: springfield il
no thanks . a johnny come lately as far as i can tell and i cant see it making a lot more power as your choking the 351 windsor off by putting the kit / flathead heads on it . if i had the money to spend i'd do kirby's all aluminum flathead and his has been dyno'ed at 375 horse ...............
Post Fiend
Joined: Feb 2001
Posts: 6,328
Likes: 124
From: Iowa
Flatties are still sought after because....
1. First production V8, or not?
2. Launched the hotrod we still know today
3. Just plain Nostalgic! Your dad or Grandad had one and probably told you stories. How can you not show some respect for that motor?
It's not because they can win a fight with even a semi-modern OHV engine. The flatty needs a blower to compete with a high mileage bone stock 20 year old Mustang motor.
Dobie knows what kinda stupid power a 400ci Windsor stroker makes. You can run a 9 second quarter with no forced induction for WAY less money. In that regard this windsor/flatty concoction is a step backward. Performance wise it is.
Going out to the garage now to work on my Flatty cause it's way cooler than my stang motor or any fakeazz $30K flatty.
Almost forgot.... JMHO
Cargo Master
Joined: Apr 2007
Posts: 2,063
Likes: 38
From: Valley Center, California
Interesting to say the least.
Doesn't do much for me given the expense but somebody did a lot of engineering. Wonder how many are out there with miles on them? I'd be a bit gun-shy without some well experienced testimonials before writing a check.
Other than having big displacement, I'd rather go gennie with all of the cool tricks the best flatmotor builders are doing nowadays for less than 30,000 Bones....
Kinda Cool though. I'd like to hear it.
Doesn't do much for me given the expense but somebody did a lot of engineering. Wonder how many are out there with miles on them? I'd be a bit gun-shy without some well experienced testimonials before writing a check.
Other than having big displacement, I'd rather go gennie with all of the cool tricks the best flatmotor builders are doing nowadays for less than 30,000 Bones....
Kinda Cool though. I'd like to hear it.
Thread Starter
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Fleet Owner
Joined: Jul 2004
Posts: 27,294
Likes: 1,055
From: NM
It seems to me (from the very limited detail they provide) that if the "deck plate" ever needed to be removed (to replace the gasket for instance), the cylinder liners would have to come out too??
Post Fiend
Joined: Feb 2001
Posts: 6,328
Likes: 124
From: Iowa
It would interesting to see/know what all the intracacies (sp) are. The fact it works at all is amazing. I am just bashing it because I know a little bit about how a good flowing SBF/windsor head works, and it can't be nearly as efficiently done bringing the air/fuel around a 180 degree turn. I would bet big money this thing doesn't make much more power per CI than a well built NA 300+CI flatty that costs about 1/3. Big advantage would be in shortblock durability. No chance you are going to stress a bone stock Windsor 5 main crank, rods etc. If the top end is right it should last a LONG time, as well it should at the price. Curious what the cam lift capabilities are without rocker 1.6 multiplication. Bringing the valves to even .500 lift would be a trick, even with the advantage of less valvetrain weight a flatty has. Not that this is a race motor, but it is priced like one.
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Thread Starter
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Fleet Owner
Joined: Jul 2004
Posts: 27,294
Likes: 1,055
From: NM
Hard to say what it's operating characteristics wil be. With comparatively huge valves compared to a 239, you don't need much lift, and a flathead design doesn't allow for much. Roller lifters don't help, ideally they would have a larger base circle.
It's possible they are getting plenty of air in to make big time torque up to reasonable RPM. If the design will take a blower, with the 5-main crank it may be possible to spin it up where real power can be made. Would I do that with a $30k engine?! Hell no.
It's possible they are getting plenty of air in to make big time torque up to reasonable RPM. If the design will take a blower, with the 5-main crank it may be possible to spin it up where real power can be made. Would I do that with a $30k engine?! Hell no.
Senior User
Joined: Jan 2013
Posts: 317
Likes: 0
From: NW Ohio
To me nostalgia is guys having a flatty. And in their garage coming up with their own ways to modify it. From Ardun, to lakesters, to kirbys block. They did not backwards engineer something, they improved it. These guys ground their cranks, cams, valve pockets, and made thier own intakes.
Post Fiend
Joined: Feb 2001
Posts: 6,328
Likes: 124
From: Iowa
I've begun to wonder if it is the great Flatty-Windsor hoax? Ross, can you send them 30K so we can get to the bottom this?