5 liter MOPAR
Just spitballing here, but what about a 360 block with a 3" stroke? In essence you would have a Mopar 302 and the larger bore. I don't know how expensive the crank or pistons would be, but it might be worth it to check and see.
The problem is getting the crank. They are out there but the price is crazy.
Piston prices have come WAY dow in the last 20 years or so. The crank is a much bigger deal for sure.
One problem was the killing of Modified Eliminator by NHRA. Those classes were the feeders into Pro Stock. Many legendary engine builders cut their teeth in Modified.
They were small displacement, big RPM mostly clutch cars. From the time I was 8 or 10 I was going to build a Modified car. Had a buddy in high school that felt the same way. We were going to do a team together with me in a Chrysler and him in a Chevy.
Even after NHRA killed Modified we were collecting engine building tools to open a machine shop and build engines that we liked.
His untimely death in 1986 killed that off (no pun intended) and at that point it took 8 more years before I had any inkling to build engines for a living.
I said all that to say that a lot of people have never seen Modified car make a pass. What it sounds like. How they leave. What RPM and gear ratio do.
To that end, the market for cranks of even an OE stroke length have virtually no market.
I think NHRA should go back to the 1977 or 1978 rule book and bring back Modified with those exact rules.
That would be a blast. That would motivate me to go back to the track.
