08:11:09pm, Thursday, July 03, 2025
Jd 619 crank
|
Jd new guy
|
I was wondering if anybody could pointe in the correct direction. How many rpms and hp can a big block jd 619 crank handle with out breaking? It would be 619 cubic inch on alcohol, aluminum rods. Are they dependable at 6000 rpm and 2500- 3000hp |
Re: Jd 619 crank
|
mr big
|
No stock crank can turn 6000 RPM without some serious work for balance at that RPM---maybe not even with extensive work to balance the rotating assembly. Buy a billet and be done with it. |
Re: Jd 619 crank
|
Forged
|
Forged is stronger than billet. A good forged crank with properly welded counter weights is cheaper and stronger. Everyone loves billet but forging has a much more optimal grain structure to give it more strength. |
Website Statistics
Global: Topics: 39,470, Posts: 235,170, Members: 3,521.
This forum: Topics: 37,947, Posts: 231,244.
Global: Topics: 39,470, Posts: 235,170, Members: 3,521.
This forum: Topics: 37,947, Posts: 231,244.
Website Daily and Monthy Hits: http://pulloff.com/webalizer
Our newest member Neill Farms