Maximum Performance N/A 383 build. Input wanted from engine gurus.

Not a guru or expert by any means.

Car weighs a ton. Only one thing is going to move it off the line. Torque. I’d say lots of changes need made to this combo to make it work properly. Most of which everyone already touched on. If it were me and the money isn’t an issue. I’d start over.

Build a bigger engine (451, 472, 499, 505, 511, take your pick) 440 source has some nice rotating assemblies at a very reasonable cost that is already balanced and ready to go. Or you can’t beat a set of molnar crank and rods and get a shelf piston or custom one made

Trick flow heads, painted to look stock appearing
Single plane trick flow intake
Custom carb
Different Cam that is designed to make more torque to move that boat off the line over a cam that will make more power down track with increased engine RPM

2.74 low gear set in the 727 with a 4.88 (depending the tire size) because the car is gonna need all the help it can get off the line. my uncles 71 roadrunner uses a 4.88 with a 2.74 and 31x13 tire. Works great.

No way in hell I’d be spinning stock rods (ARP bolts or not) that high especially with the heavier piston. Asking for trouble. Not when ones like Molnar are available at an affordable price. Take advantage of the low deck engine with the piston being lighter over an RB.

Sean is correct. Hutch up in Canada runs a 383 engine in his kick *** 69 roadrunner. Car is not 4,000lbs but he still spins it pretty high to get it to run how he wants.

Just my 2 cents.