WHO KNOWS STROKER MOTORS ?

[cawley]

Bought a 408. Im taking the guys word for it. I did hear it run & it sounds really good. I would think that if your going to build something like that would have it internally balanced. Not sure if this is. It has a externally balancer on it. I am going to put all new gaskets on it. When I have the heads & oil pan off is there a way to see if it is a stroker ?

 

[Steven190]

Internal balanced the crank will have holes drilled into the counter weight or have some metal added to the holes for balance.

 

[brian6pac]

When you get the pan off take a picture and post it.

 

[Wyrmrider]

cast stroker, which is fine and waht most are, will be externally balanced unles $$$$$
are weights on converter or using M and M type adapter with weigh so you can use a neutral balanced converter
does not matter till you want to change converters then would be nice to know the balance details/ bob weights etc

 

[Murray]

When heads are off, measure the stroke and bore.

 

[B3422w5]

Ran an externally balance stroker for years. Until started running 10.30’ 10.30’s in a heavy A body and the crank( Eagle) broke

 

[Wyrmrider]

One reason to add center counterweights
but better to have them built in

 

[furrystump]

Running a cast Scat stroker to 6400 rpm for 900 passes and a bunch/60,000 of street miles. Like stated above. Pull the pan and check who made the crank. Eagle cast is questionable and I would be nervous approaching 400 hp.