7 bolt crank in a 6 bolt block finally possible

[ed1380]

I guess someone finally figured out now to do it

Mitsubishi Galant Stroker Motor 3.mp4 - YouTube

 

[TalonEsi_96]

Thats pretty sweet! Would like to see a video of the car running it.

 

[ed1380]

I just spoke with him and the main and thrust journal on the crank have to be made bigger. About $175. So it just depends if you can find a 6 bolt 2.4 crank (hard to find) or if you want a 7 bolt crank modified. It's a good option because you can get a 7 bolt 2.4 crank for $30 at pull-a-part.

 

[bryanwheat]

I just spoke with him and the main and thrust journal on the crank have to be made bigger. About $175. So it just depends if you can find a 6 bolt 2.4 crank (hard to find) or if you want a 7 bolt crank modified. It's a good option because you can get a 7 bolt 2.4 crank for $30 at pull-a-part.

That is awful cheap to have the journals welded and machined. The 7 bolt main journals are 42mm and the 6 bolt main journals are 44.98mm . Not to mention that the journals won't be hardened for that price. To weld the crank, machine it and have it re hardened you are looking at more money than what would cost you to buy an eagle crankshaft.

 

[ed1380]

I think they keep the bearing surface the same size and use 7 bolt bearings. The machining is just to fit the wider main caps.

Seeing the quality of work they do and having parts shipped to them from all over the works I would trust them with my engine

 

[1fastlaser]

I'm pretty sure that's a early 93 94 7 bolt motor.

 

[jimbob_843]

Its a 6 bolt hence the main CAPS .

 

[1fastlaser]

93-94 7 bolt have the same main caps.