It would be fair to let GFW post all the specs about the motor that he knows before we start making assertions and corrections. While it's true 500 HP may be overstated, there may be some serious modifications hiding under that blue paint. It's obviously heavily modded and I for one just want to know what all has been done.

 

Wow. That's 1.2 HP per cubic inch. That's amazing with a stock casting head!

 

The kits are no longer listed on their site, so unless someone has some other listings, or has their at home catalog (which I hear has more than their site), it'll just have to be one of those "take my word for it" things.

The kits consisted of, if I remember right, super hardened push rods, rocker arms, springs, valves, rocker arm studs, lifters, and a cam. It wasn't cheap. But there were two kits, one that revved to 5500 and the other to 6500. The thought of revving a 300 to 6500 scares me, but it sure would be fun.

 

Google'd and came up with this thread that some of you posted in mentioning the same things. "300 six hp and torque possibilites" dated 1-20-08. A reference was made to Custom Classic Trucks magazine building a 500hp I6 engine. I know beans about a six, researching a 200 build for a new project. I will e-mail the guy that sent me the pic's and see if he can shed any light on the build. He's going to send me a build sheet on a 200 his father built this week. Even with the claims, big diff weather it's flywheel hp or to the ground. For all I know, there could be a nitrous bottle hiding somewhere. Posted for your pleasure, not for a debate.

 

It would be fun to know what was done with it, no matter what the HP output is. Obviously, there are times when people just toss a number off the top of their head for HP out of "guesstimation" like the guy I bought my Offenhauser intake/Holley 390/K&N air filter combo from. He put that and headers on and said he was pushing 300+ horsepower. Got the carb and it still had the stock jets in it, which are too small for even a mildly modded 300. Not saying that's the case, but sometimes that's all it is. Like fish stories.

Either way, that was cool to see, so thanks for the pics! Probably going to save them for later to share with friends.

 

The bottom end on the 300 will most likely take a 6k spin. If one where to add ARP bolts to the mains and rods, (I did this) a trip to the speed of a small block aint going to hurt it. Ford put enough iron on the bottom of the 300 to suport 2 engines with 7 mains. A modern V8 has 5, a flatie 3.
The weak point on power of a 300 is the head. They dont breathe for squat. A port & polish, aftermarket intake, headers, and a cam and I can see an easy 350 hp. A lot of tweaking and tuning I would belive a 300 capable of 400hp NA.

500+. Nitrous? boost? lots of posibility if one where to do it.

even if that 300 is only 350 horse just remember that the HO 302 mustang enigine only came factory with about 225 in the 80s and 90s.

Yes, those are Holley 4150 carbs. With vaccum secondaries. The 4150 is a DP carb too.

gfw1985, Please post more stupid pics. You got everyone talking. That is what a forum is for.

 

The 'kits' AB mentioned are still available. I almost bought one a few months back, but decided it was too radical of a build for what I wanted, but I couldn't pull myself away from the over size valves. You have to search in the tech info link to find the kit.

Rebuild kit cost is $869.00 and consists of;


1 Aluminum Alloy Dished Pistons w/pins .030/,060
2 Chrome Rings .030/.060
3 Clevitte Main, .010 Rod .010 & STD Cam Bearings
4 264 or 270 duration camshaft
5 Clifford High-lift Springs
6 Chrome-moly Retainers
7 HD Valve Locks
8 Chrome Molly Pushrods (MANTON)
9 Complete Rebuild Gasket Set

10. Cloyes Timing set.


The Pistons can be ordered in .030 & .060
Bearings can be ordered in Std .010 or .020
Your Camshaft can be ordered as 264, 270, 280 or 290 Duration.
Daily drivers use 264 or 270 duration.


*CLYLINDER HEAD:

Order our custom valves for your Ford 240-300 engine.

Glass bead/Port/polish the valve pockets and blend the runners.

Order ARP3/8 inch screw in rocker arm studs.

Install new hardened exhaust valve seats and make sure you replace your valve guides.

Done properly, this work will add 60% power and torque to your engine performance.



*Note.
For best Torque get the Clifford 264 cam, Blueprinted Cylinder Head, Ram Flow Intake and Headers. You have a choice of two carbs. 390 CFM Holley or, 470 Holley Truck Avenger.

Now you order our dual intake with two 32-36 Weber carbs and get 20% more top end torque and horse power!

Timing is set straight up at your Cloyes Gear, using a Mallory Unilite distributor at 11-1/4 degrees advanced, is your best choice. This was Jack Clifford's best fix for your inline engine. He even ran Unilite parts in his Hudson race car.
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The kit, guys, does not come with the 'Clifford' head with the over size valves. The finished head costs about $1200 from Clifford. I bought the sbc valves myself, with Isky springs, ARP studs, lifters, etc., had my machine shop set everything up with new hardended exhaust seats, and had it professionally P&P ed, and I only saved a couple of hundred bucks.



The Clifford site claims his build will produce 300hp. With the dual carbs he says 325. I am simply relating what I read.

I should also mention that he recommends zero decking the block, and milling .060 off the head!

 

I never said the pictures were stupid.

 

Sorry, guys--

To find the kits, you have to click on the tab that reads: News, on the main page, then scroll down.

 

No, Bill, you didint. I used stupid in place of silly. I probobly should have quoted this on my last post.

 

Here are our Intake Manifolds custom made for the FORD 240-300. We are now running two 32-36 Weber two brl carbs on our dual carb intake. This makes a great daily driver and when the secondaries open up, more torque than one carb can make. With your engine built to our spec's, it will make 418 ft lbs of torque at 3,300 rpms and up to 325 horse power at 4,300 rpms. W0W!



Just built this dual quad FORD 300 long block with 418 ft lbs of torque!

Your price is $5,369.00. Install this in your truck and have some fun.

 

What the heck? I never said it was silly either. I said not giving us any info about it was silly. Especially with how deprived us Sixers are.

Jeez man, I thought we were all friends here.

Edit: I just realized you weren't being hostile to me. Sorry, thought you were. Sometimes it's hard to tell what's what on the computer!

 

This motor would sure look good in my truck.

 

And this would sure look good in my wallet

Probably make it hard to sit down though, but I would get over it

 

Bill, No hostility there. Just simply and quickly trying to absolve you of any wrong doing.
I was in a hurry to warm up the oil on my 64 and just sent a quick line. Finding info on these sixes can be a bugger. So any info is a boost.