Put a set of SBC .250 dome pistons under that you will need to work on the dome and the bowl in the head get you the race pontiac intake 500 CFM holly you will have something !

Yea got a chance to get a 2.5 fireo thanks for the info .

Ture that, not much info on these engines besides the penny Fiero forum, had to learn alot the hard way.

I remember watching this boat race in Dayton Ohio back in the '90s. My Dad loved this boat he'd always tell me stuff about it that it. Like how it was a special made lauterbach.

Hey man do you have a way I can contact you other than on here

What’s the lash your running on intake and exhaust?

Now that's a DUKE

here it is 2022 and im trying to rebuild my 85 citation thank you for this video i needed it

What head gasket can you use for the sd4 aluminum head?

Sweeeeetaaa

what kind of horse power can be expected by doing this i have a 2.5 iron duke and want to do this to mine thank you

Did they ever make a "one way" variant of the aluminum? I've got an 88 4Tech im looking to throw some performance parts at but all I can ever find is the variant in which both intake and exhaust are on one side of the head.

So this will work for the 2.5 fuel injection iron duke

Would love to see a SD on boost.

How much to put it in my truck?

Sounds like push mower haha

Have you any experance with the 3.600 stroke Iron duke. I have one I put together for my Pontiac Fiero. 4.060 X 3.600 makes 186 cu in.

Sir your knowledge on these engines are incredible. These engines are so terribly overrated I’m currently building a daily With the new Holley 2300efi. Looking for 200hp as a daily. I’d love to see how far one would go on a turbo setup but I don’t wanna throw money away just to be different however as a reliable peppy daily I’m in. What is the best keyword to part search online iron duke. Mark IV, fiery,s10, or something marine based?

Wow and everyone runs mustangs in mini stock outlaw. Them fords would come close to that In a Vega

Thanks for your reply. Since sending the message I found a set of farrea stainless valves on eBay. Thanks again. Simon.

Hello, I like your video. I'm currently buying parts to tune my 1980 L4 duke engine. (1980 monza spyder) I have everything sorted except new valves. I would prefer not to go stock. Do you happen to know the reference # for Manley valves ? I've got Manley rods with wiseco pistons. A comp cams top end rebuild kit with a street cam. Proform distributor. Headers. Gsxr1100 40mms cv bike carbs with a bogg brothers mannifold. Comp push rods. ARP studs. I feel I've covered all bases except valves. What performance valves should I use ? Any help would be welcome. Again, great vid. Anything on the cross flow duke. Thank you. Simon. I know I'd really like a sd4 head but have no chance of finding one in England

I saw a comment that you saw interested in selling, please contact me if you’re willing to sell or have any parts for sale 419 605 3494

what cylinder head is that??

the legendary Iron Duke. The racing version of this engine lived up to its name. Four Fists of Fury

Hey im wanting to build up a 2.5 in a citation is it doable thks.

Well I had seen your vid about a month back. Threw that info in the grab bag for later, and boy am I glad I did. Found a super duty engine with the head listed as "iron duke" with no other info. Thanks for the info,.as now I have a great head and engine.

I had a few of these in some of the GMS ive owned an they were all fun lol, I had to watch this a few times just because of how good it sounded thru my headset :D nice job on the build

Thanks for the vid. Definitely keep my eye out for the aluminum variant.

Looks like it's that time of year. 👍🏻

How can I get ahold of you?

Looking for Heads and hard parts for a Iron Duke Midget build!

Sounds like a lawnmower. lol, i bet it sounds fantastic in person, the camera audio does it no justice....

Hi, how about doing an engine build series on these little engines. I just love those little bangers

lawrence you can email me at mlong51@ hotmail.com

Hey what's a number to reach you want to ask some questions

50s cartoon exhaust pipes

😳

Speed......

look ma i am flying

this boat is near and dear to our hearts in the Long family. it was hanks boat then my dads boat. as the big chief a 11. we won a lot of races with it. glad its back with hanks colors. many races on the ohio this boat and a 5 mahogany rush ran 1 st and 2nd . got the hard ware to prove it.

Cool

Those are fast boats.

it was cold rainy and windy.. water was ruff and the course to short. but it was a first year effort at the last minute . because dayton wanted $4000 a day to use eastwood lake. a lake created by boat racers from a oldd rock quarry in the 60s. just for boat racing and the gov stole it.. your not rockin in the free world bitchez

Will this fit a 1991 2.5e code. I'm trying to build a fun sleeper.please please please help

found this www.italian.sakura.ne.jp/bad_toys/cosworth/index4.html scroll down to SD4

Hey Mr Mark if you could give me a call at 859 321 3506 I have a few questions

More great Duke information, I ended up using small block small journal rods as well but had the rod widths machined down to fit didn't even think about having the crank ground to fit the rods

If you mind me asking, how much does it cost to get the crank machined? Doesn't the flywheel end need redone, then the journals to fit the pistons.

I absolutely love this engine, watched your other videos and can't get over it. I have an s10 with a 2.5 and would love to build it just like this. How much power do you think it's making?

omg you weren't kidding. those hydroplanes are amazing! gorgeously crafted and super cool to see. my husband would LOVE to go to a race like that. cheers!