Aftermarket factory-appearing Duramax block
- Thread starter RPM Motorsports
- Start date
You have my attention.
I would love to try the narrow journal crank (which we know is darn strong) with a stock L5P head, which looks like it should flow like crazy. Hook the injectors up to a LB7 or LLY FICM (depending on how much voltage they like) so I can run my RoadRunner for tuning. Would be a whole lot of fun to see what I could do with that combo
My wish list:
Higher deck
Internal clearance for stroker++ cranks and longer rods
Sleeves from the get go.
Hermaphrodite mounting holes so parts from most years will bolt up.
But that's just me.
Higher deck
Internal clearance for stroker++ cranks and longer rods
Sleeves from the get go.
Hermaphrodite mounting holes so parts from most years will bolt up.
But that's just me.
Please explain this "Hermaphrodite mounting holes" you speak of. I'm intrigued. Never heard of an application like this used in this way. Seen it in many electrical connectors and other type of connections but not on head fasteners
Aren't the L5P heads just like the previous heads except for an additional couple bolts? As I understand it, if the block is setup for the L5P heads, then you can bolt on any year heads just fine.
Would be interesting to see if the block could have the front/rear cover and accessory bracket holes for all years, or if it would cause problems for sealing or something.
Sent from my Cat S60 using Tapatalk
Would be interesting to see if the block could have the front/rear cover and accessory bracket holes for all years, or if it would cause problems for sealing or something.
Sent from my Cat S60 using Tapatalk
One thing I have always liked about GM is that they tend to leave old bosses and mounting points in tact on new versions of their engine blocks. The bosses may not be tapped in some cases, but they are there if you need to use the block in a different application.
I wasn’t planning on making a thread until after the molds were done, because I’m not sure how long it’s going to take them. Heading up tomorrow to finalize everything and do a few minor changes. Once I have castings ready, one of our well known vendors here will be doing the machining as a final product, to make sure all is perfect before going out the door:thumb:, more on that later.
So far, everything above is a go, And already done in the files. How’s 4.055”- 4.350” bore sound
Sounds like soon to be issues with the Siamese area between the bores at the big end of that range.
Fingers, you use some of the strangest terms describing these things (Siamese, hermaphrodite) maybe I’ve just never heard them but they actually make sense lol
Zach, not a dis, but you've never heard of Siamesed cylinders in an engine?
PS, Jon is a very intelligent and creative guy. :hug::thumb:
PS, Jon is a very intelligent and creative guy. :hug::thumb:
Mark, cmon.....you want one yesterday, dont ya? The gears of possibility are turning in your head again, arent they? :thumb:
Lol, honestly if it works out I'd love a solid aluminum one for the rail car I have sitting in the barn...