FSB v FBB

[Fordman75]

I know what you mean! I've got an old 6-71 supercharger off a Detroit diesel sitting in my garage. It's going in my 64 1/2 Mustang coupe.

[Grand Marquis GT]

kaase heads, eh?

sounds like a plan

[RugerP97DC]

I know what you mean! I've got an old 6-71 supercharger off a Detroit diesel sitting in my garage. It's going in my 64 1/2 Mustang coupe.

V-8 DD?

[Fordman75]

Yep the Kaase heads are in my plan!

I'm not sure if the Detroit was a V8. A friend of mine in Texas found it and pulled it for me. I'm not all that familiar with the big truck/equiptment diesels. :baghead:

[Mercracer]

V-8 DD?

6-71 is a V-6 71CI/cyl motor.

[Mercracer]

Basically they have all the benefits of the Cleveland style heads with none of the draw backs. The only bad part is they take a special valvecover.
They are a bit of overkill on the street but if I'm going to spend the $$ for aluminum heads I'm getting the best ones I can!!

They are not in any way intended as a street or street/strip head. This is a race head...pure and simple. They have the same drawback as a factory Cleveland head in that they are too big for your build.
Bigger does not mean best ones.

[Mercracer]

Should I stroke the engine. I am shooting for 425lb-ft out of it around 3k to 4k, but I am beginning to think I am not gonna get it w/a 302. Hp is not very important to the toqure

If you go with a 347, you can keep your factory accy brackets, oil pan, and you will save yourself over 75 lbs. By the time you buy decent rods and pistons for a 351W, and you haev it balanced, you are only a cople of hundred dollars away from the engine costs of a 346, and you have none of the adapting costs. Parts such as distributor and intake are also significantly cheaper with a 302.

[Fordman75]

Mercracer those Kaase heads are going on the 351W I'm building for my Mustang. And it's going to be a blown drag car. I didn't say they were the best heads, I said they were one of the best flowing Windsor style heads.

And when I said they don't have the drawbacks the Cleveland heads do, I was refering to mounting Cleveland heads on a Windsor block which requires a custom intake, Custom headers, plugging water passages, drilling new ones, drilling steam holes in the block, etc, etc.

And as far as the 302vs.351 goes I'm sorry but he said he wanted low end torque. He could sink the same amount of cash into stroking the 351W if he wanted to stroke a motor. There is no way a 347 will out torque a 393-427W. Yes the 351 is heavier but unless you are building a roadracer or dedicated drag car it's not a big deal. But this is just my opinion. And you know what they say about opinions.

[Mercracer]

And when I said they don't have the drawbacks the Cleveland heads do, I was refering to mounting Cleveland heads on a Windsor block which requires a custom intake, Custom headers, plugging water passages, drilling new ones, drilling steam holes in the block, etc, etc.

And as far as the 302vs.351 goes I'm sorry but he said he wanted low end torque. He could sink the same amount of cash into stroking the 351W if he wanted to stroke a motor.

You still need to use a custom piston, as these are canted valve heads. The pushrod length and the valve cover design is also unique to these heads.
The bare shortblock is somewhat cheaper going 347 vs 393, and you still need to pay the extra for the bolt-ons and a core 351. If you have the extra hundreds $ to spare, then bigger can be better.

[RugerP97DC]

Well guys I found a builder/blueprinter here that has the following:

351W $350 Bare Block
429 $500 Full engine (needs o be rebuilt)
460 $250 Bare Block

351W & 460 have been fluxed and rayed and have no problems. The 429 was just pulled out of a t-bird.

I'm now thinking 460. That is a NICE price for a FBB!
But the 460 is an 80 cast and the 351W is a 69 cast.

[Mercracer]

351W $350 Bare Block
429 $500 Full engine (needs o be rebuilt)
460 $250 Bare Block

Holy Overpriced Batman!!!

[Fordman75]

Mercracer if you are building an engine the pistons and pushrods aren't a big deal. You'll be buying new ones anyways. And I did say the valvecovers were the big draw back. But they do sell them($130 ).

And yes the 347 might be slightly cheaper. But tell me which would produce more low end torque a 347 or a 393? And you can usually make up most of the price of the core 351 by selling the 302.

BlazingStang you are much better off buying a complete motor. The small parts you'll need will nickel and dime you to death. Or atleast buy a complete shortblock. And if you are going with a 351W got with a 75 or newer. They have a slightly taller deck height. I'm not sure where you are located but I've got two 351W shortblocks I'd sell either one for $150.

[RugerP97DC]

Im down in NW FL. Shipping would be higher. Prices are higher here simply because here arent many avalible.