[Junkyard Dog]

Originally Posted by PONTIAC DUDE

66 bonne is running one of my stock block 455's (4.185 bore) with a 4.5 crank.
65 Catalina and running 10.70's on pump gas and my custom hyd roller. So far.

Tell us more about this. I thought that it was not good to put a 4.5 crank in a stock block. You have two of them, one running in the tens?

[PONTIAC DUDE]

Originally Posted by Junkyard Dog

Tell us more about this. I thought that it was not good to put a 4.5 crank in a stock block. You have two of them, one running in the tens?

Yes. as his combo is a tank and needs torque thought it was worth a try. But you need heads to flow some fuel and air. Otherwise it's a waste of time.


455 block with factory 4 bolt caps and bottom filled. 5800/6000 rpm max.

To me a 4.75 stroke in a stock block is a waste of time and money that can be best spent elsewhere.

[Junkyard Dog]

Originally Posted by PONTIAC DUDE

Yes. as his combo is a tank and needs torque thought it was worth a try.

Well, it looks like your "try" worked out quite well if you put that tank in the tens on pump gas with a maintenance free hydraulic roller.