Stroker kit?
Posting Guru
Joined: Nov 2003
Posts: 1,006
Likes: 4
From: Sussex County, DE
I figured since I was getting the crank balanced, an ofset grind might be worth it, since the block and head are in need of no machine work at all. I am buying new bearings anyway, so getting .020" under rod bearings wouldn't be a big deal. I was figuring machine work for the crank (for balancing) plus machine work for decking the block and the head would be more expensive than just ofset grinding the crank when getting it balanced, and leaving the block and head alone. Plus the slight increase in stroke is like adding a little more lever action, therefore I'd pick up a little more torque simply from that. I already straight-edged the block and head, they are fine down to the smallest (.00025") feeler gauge I have. No that's not a typo, I realy have a quarter thousandths feeler gauge. Just a brainstorming idea, something different to do. Or, I might just say the heck with it, and put it back together with a re-ring and bearing kit, since it never sees over 3,500 revs. But I can't just do that... curiosity will always get the better of me. 
Postmaster
Joined: May 2002
Posts: 3,241
Likes: 3
From: Broken Arrow, OK
With the crank offset ground 0.020 you wouldn't gain 0.040 stroke, you would only gain 0.020. When you offset grind the crank the out side edge stays where it was originally and the inside moves out by the amount of the offset grind. The centerline of the journal only changes by half the amount of grinding.
If you want to increase compression with a rebuild install early model pistons. The stock EFI piston's dish is about 33cc. Earlier models were only 19cc. That's an increase in a full point right there. There are even flat tops available. Silvolite used to have a very useful chart of pistons on their website, but it's gone now. It had all the piston specs listed so you could see what would work and what wouldn't.
If you want to increase compression with a rebuild install early model pistons. The stock EFI piston's dish is about 33cc. Earlier models were only 19cc. That's an increase in a full point right there. There are even flat tops available. Silvolite used to have a very useful chart of pistons on their website, but it's gone now. It had all the piston specs listed so you could see what would work and what wouldn't.
4wd High
Joined: May 2004
Posts: 9
Likes: 0
Deisel semi's have multiple billion dollar corporations designing, redisigning, and poring technology into them. It's a big industry. Semi tractors also have FAR LESS rolling resistance than passenger trucks, and cars. The only time you'll see that gas mileage is on the Linehaul semi's running from LA to NY, ie, freeway cruising on cruise control at most efficient rpms and gearing for hours on end.
I work in the industry, and I know 1 thing, you cannot compare apples to oranges. A gas engine designed in the 60's is going to be in a totally different ball park than a deisel engine that was part of a multi-million dollar R&D project in modern day.
As for increasing torque, look to a positive displacement supercharger, or a turbocharger, you will not believe the increase in lowend torque on a properly designed induction system.
I work in the industry, and I know 1 thing, you cannot compare apples to oranges. A gas engine designed in the 60's is going to be in a totally different ball park than a deisel engine that was part of a multi-million dollar R&D project in modern day.
As for increasing torque, look to a positive displacement supercharger, or a turbocharger, you will not believe the increase in lowend torque on a properly designed induction system.
Thread Starter
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New User
Joined: Apr 2004
Posts: 8
Likes: 0
Still no kits or working combinations for a stroker? Ideally I don't want to raise the cubic inches of the motor, but that is what you get with stroking. I think 300 inches is plenty for a pick-up.
There was plenty of R&D on the Ford 6, I'm sure. They wanted a truck motor but still had to make everyone happy. What would be wrong with making it a truck motor even more... like customizing for your own needs? Just like anything else, if you don't like what you got, build it yourself the way you want it.
There was plenty of R&D on the Ford 6, I'm sure. They wanted a truck motor but still had to make everyone happy. What would be wrong with making it a truck motor even more... like customizing for your own needs? Just like anything else, if you don't like what you got, build it yourself the way you want it.
