boring out a block

[P72Ford]

so the stroke doesn't dictate I put certain heads on?


I remember being given a very vague explanation of a 383 stroker...the guy said it was a 350 with 400 heads?

Its a 350 with a 400 crank.

But that doesn't mean you can put a 351 crank in a 302... :p... it just doesn't work that way with Fords.

[Mercracer]

Its a 350 with a 400 crank.

But that doesn't mean you can put a 351 crank in a 302... :p... it just doesn't work that way with Fords.

It does with the 351W. You can put a 400 crank in a 351W block. Not quites as simple as doing it with a Chevy 350, but any competent machine shop can do so.

[gadget73]

It does with the 351W. You can put a 400 crank in a 351W block. Not quites as simple as doing it with a Chevy 350, but any competent machine shop can do so.

Is there an atvantage to doing this vs buying an aftermarket stroker crank ?

[Mercracer]

Is there an atvantage to doing this vs buying an aftermarket stroker crank ?

Cost savings if you have a friend doing the machine work for dirt cheap. These days you can get a cast stroker crank for a reasonable price. Back in the 80s and early 90s you heard more of people using 400 cranks.

[rick99601]

Cost savings if you have a friend doing the machine work for dirt cheap. These days you can get a cast stroker crank for a reasonable price. Back in the 80s and early 90s you heard more of people using 400 cranks.

the internet really has changed things up.

[Mercracer]

the internet really has changed things up.

Not even that. The explosion of parts and racing events in the late 1990s really drove the market to develop such things.

[pantera77]

Didn't that one guy have a 347 with stock e6's and was running 16's? I lol'd at him.

[1990LTD]

Didn't that one guy have a 347 with stock e6's and was running 16's? I lol'd at him.

that's awesome

[gadget73]

ah, I had a feeling the cost was the issue. I'd imagine now you'd have a harder time even finding a 400 to strip a crank from.



Someone put together a 347 with stock E6 heads? What a horrible idea.

[1987cp]

I had a guy bore a block for me once. "And then when I was five ....."


Re the comment on modifying a bore to reduce valve shrouding, is that something that's ever done on a factory SBF block? Because SFAIK, with a SBF things can get sketchy by .040 over, so as far as actual bore diameter you always want the minimum overbore necessary to clean up the cylinder walls, and so I'd think deliberately thinning the walls further near the valves could be asking for a lot of trouble.


When the boring guy got done with my block, the only thing I worried about was to order pistons, rings, and bearings in the correct size (in this case, .030 over for pistons and rings, and .010/.010 under for bearings).

[Piece-it pete]

I had a guy bore a block for me once. "And then when I was five ....."

Pete

[1987cp]

Yeah, he was a very boring guy. Once he got started yapping, you'd be stuck for an hour or more.

[mrltd]

Didn't that one guy have a 347 with stock e6's and was running 16's? I lol'd at him.

Stock heads and lopo intake... 347 AND a 5 speed! And yes mid 16's. I ran 16.0's with a stock lopo motor!

[Pirate]

It all depends on the castings too, how much meat are in them. I heard the best 302 blocks were found in Mexico.

There are no 'best 302 blocks', lol. The best stopgap 302 block is the Boss 302 casting from 69-70....and even then, it's barely on par with a regular 351W unit.

Stock heads and lopo intake... 347 AND a 5 speed! And yes mid 16's. I ran 16.0's with a stock lopo motor!

You don't understand. He's trying to build the slowest Box of all time, using the biggest 302-based engine possible with a stock block.

[Mercracer]

There are no 'best 302 blocks', lol. The best stopgap 302 block is the Boss 302 casting from 69-70....and even then, it's barely on par with a regular 351W unit..

Ford does not have the confidence in a "factory" production 351W that you do if you are placing it above a Boss 302 block. A Boss 351 block however is nearly worthless.