451 stroker pistons and pins?

[DanielRobert]

So, as I'm deciding what to do with my 440 engine, I come across a 400 block thats been bored to 4.375. Nothing more has been done to the block machine wise. The guy has Ross pistons (p/n 99494) that spec  a 1.094 pin? How does this fit the 440 rods and what is the cost of making that happen? It'sa killer price with the block/pistons he has a cam(new .510 lift) and stock 452 heads, roller rockers and timing chain and aluminum water pump. I'd like to buy this but am wondering how much more machining cost I'd have to do to complete the stroker motor? any ideas?

[Nacho-RT74]

basically 2 ways to make them

with 400 or 440 rods

http://arengineering.com/tech/451-manifesto/

I went basic with this setup having the 400 rods in hands

https://www.houstonmopars.org/stroker.html

[BSB67]

The normal Mopar rod pin size is 1.094.  That is what is in your 440.

Your piston CD will dictate the rod length you will need.  If it requires the std length 440 rod (6.76) then your factory rod should work or after market easily available.  The Mopar std pin size has become less popular in the after market stroker packages, but most combinations can be found.

Are you planning to use your 440 crank?  You'ok have some work to do there too.

[DanielRobert]

Yes, I was planning on using my 440 crank.... funny thing is, the guy with the 400 says he can't find one of the crank caps....should not be a problem right? just find one and have it line bored?  I believe he bought the pistons specifically for the 440 rods and 400 block

[Challenger340]

Yes, I was planning on using my 440 crank.... funny thing is, the guy with the 400 says he can't find one of the crank caps....should not be a problem right? just find one and have it line bored?  I believe he bought the pistons specifically for the 440 rods and 400 block

He LOST one Main Cap from the 400 Block ?

It should NOT typically require Line boring to "fit" one replacement cap.... as long as you can provide the Machine Shop a few "extra" 400 Caps from scrap 400 Blocks to trial fit and dick around a bit... or if they have a few 400 Block dud caps laying around in stock ?  "usually" a guy can find one fairly close, peen, or otherwise adjust, until just a Line HONE can suffice ?

But I dunno cost-wise if you may not just be better off starting with another virgin 400 Block ?

Is this guy's 400 Block a "213" Frost Block or something otherwise "special" ?

[DanielRobert]

Yes, I was planning on using my 440 crank.... funny thing is, the guy with the 400 says he can't find one of the crank caps....should not be a problem right? just find one and have it line bored?  I believe he bought the pistons specifically for the 440 rods and 400 block

He LOST one Main Cap from the 400 Block ?

It should NOT typically require Line boring to "fit" one replacement cap.... as long as you can provide the Machine Shop a few "extra" 400 Caps from scrap 400 Blocks to trial fit and dick around a bit... or if they have a few 400 Block dud caps laying around in stock ?  "usually" a guy can find one fairly close, peen, or otherwise adjust, until just a Line HONE can suffice ?

But I dunno cost-wise if you may not just be better off starting with another virgin 400 Block ?

Is this guy's 400 Block a "213" Frost Block or something otherwise "special" ?

thatsa good question ....I'm unaware of the 213 blocks...if it isn't obvious, I'm new to the Mopar scene as I've been a GM guy all my life. I love all cars and want to own one of everything before I die.   So it's fun learning of this stuff.