A friend of mine has a new billet Crower crankshaft, it's for a BBC, standard sized main journals with hemi sized rod journals (I can't remember the actual numbers right now). Can this crank fit in a Bowtie block with a 10.2 deck height? What can I expect a set of rods to set me back for ($$$$) on a crank like this?
Strange. I know lot of guys did hemi cranks with BBC rod journal size (smaller). You need to post that current rod journal size. I am not a Chrysler guy....what I remember is a 426 was like 2.375.
Appears the 392 was 2.375 journal also. I would sure suggest if this is the case to have the crank rod journals turned to 2.200 (BBC). You don't need to be packing all that rod journal in the first place and would simplify everything. Some HP along the way and cheaper bearings.
For a billet Crower...it's worth it.
My bone head self forgot to include one of the most important points of my question, it's a 5.1" stroke Crower billet crank, will it fit in a 10.2 Bowtie block?
Please don't take this the wrong way...your friend bought what should have been aborted. If the question is being posed..he bit off more than he can chew.
Not happening in a bow tie.
Good, luck.
Wags
No offense taken. I have no idea how he acquired that crankshaft, I doubt he bought it, it may have been part of a trade, a "kick down", etc... I asked the question on this forum for myself wondering what it would take to run it since I didn't have a clue and my friend wasn't very specific when I asked him about it.
Depending on how much material is on the rod journal, it could be offset ground to de-stroke as far as possible. If in fact it is 2.375, you can take off .175" and destroke it to a 4.75, but even that probably won't go in a Bowtie block.
The rod dia was probably increased to the Hemi size to increase the overlap at that stroke. Have you over looked what may be the obvious? Did you check to see if that crank is cut for a stock 4.84 bore centers? With that stroke it could very well be cut for 5.00 centers. Call Sonny's, he will probably give you $100.00 for it
... Did you check to see if that crank is cut for a stock 4.84 bore centers? With that stroke it could very well be cut for 5.00 centers. Call Sonny's, he will probably give you $100.00 for it
All is not lost! All you need is one of these! The block at the bottom of the page with the 1" raised cam, and 12.00 deck height! Hey WSUWRHR, how about 800+. Come out the cave WSUHRSR, there is alot going on out here in the sun
Pretty good if you are building a max effort tractor puller or race motor. Not a recreational guys boat motor.
The rod angle and side load created by a stroke that big will require a very tall deck and long rods to get away from the physics of mass and angularity, as well as the heads needed to flow kitchen-sized-trashcan ports to feed the monster.
I am in the sun buddy. I am being reasonable, not having internet fun with a guy's ideas(and money).
"as well as the heads needed to flow kitchen-sized-trashcan ports to feed the monster."
Amen to that. Cylinder head should be thought first...not last.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Performance Boats Forum
2.1M posts
41.1K members
Since 2007
A forum community dedicated to performance boat owners and enthusiasts. Come join the discussion about offshore racing, performance, modifications, builds, classifieds, troubleshooting, maintenance, and more!