On the 6.1/426, the rod length to stroke ratio isn't all that great either.

Price will be less than $3000 Retail, and includes:

Compstar 4.050" stroke forged crank
Compstar 6.125" connecting rods
Mahle pistons & rings
ACL main & rod bearings
Balancing

Also, as an update..... We were expecting to have the cranks available late in January, but now it appears as though mid to late February is more realistic.

Nick

Looks like some killer work guys!

TJ

Any updates?

It looks like of the HP from the 426 makes you sick, you can get some medicine here too!

Uh oh....a 440 Hemi. Anyone remember back in the day, you could hear....."Man, I used to have a 440 Hemi in my Imperial" HAHAHAHAHAHA.

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????

Are you a TROLL???

My question is why do you have to sleeve an iron block? I thought an advantage to iron blocks was that you could just bore them out to the desired size.

Are the sleeves necessary because you guys are boring the block so big it protrudes into the water jackets?

And why can you only get 426CI in an iron block w/ sleeves when you can get 427CI out of an Aluminum block with sleeves(ls1)?

Sleeving the iron 6.1
 

There isn't enough cylinder wall thickness in the stock block to bore it to 4.150" bore.

The Darton MID sleeves are much stronger than the original block material, roughly three times the tensile strength. The strength and ductility make it possible to run much more boost, or nitrous than the stock cylinder walls would take.

The max. displacement of the Hemi would depend on the available crankshafts (stroke) and what would clear the internals. There are 4.25" cranks available off the shelf for the LS engines. With 4.200" bore, one could build a 471" LS1.

Steve