I wonder which Gregg they are talking about?
OP, don't spend your time and money using this combination, buy a longer stroke crank to make more power, either have a used 440 crank if you have one, and have it ground down on the mains and counter weights to fit your low deck block and have the rods offset ground down to BB Chevy rod journal to increase the stroke to 3.900 or 3.910, what ever the crank grinder can get you twocents
If you don't have or can't buy one, forged steel 440 crank, really cheap, buy a new 4.250 stroke crank and buy the parts you need to make the kit you want for your motor.
The first low deck pump gas stroker motor I built back in the early 2000 was a 400 block that needed four sleeves to make it useable, I bought a Ohio Crankshaft Company 4.250 stroke low deck crank and a set of China made CAT brand BB Chevy type forged H beam rod that had the BB Chevy wrist pin and rod bearing size that was 6.700 long, I had Ross Pistons make me a set of dished pistons that gave me 9.25 to 1 compression ration with the pistons down .025 from the deck and using a .017 thick beaded steel head gasket with a set of big valve mildly ported 906 heads that had 84.0 to 84.5 CC chambers. These parts made 9.25 to 1 compression ratio for CA pump swill back then. I ended up using a custom ground Comp Cams solid roller cam that was 260 degrees @.050 on the intake with .420 lobe lift and it had 266 @.050 on the exhaust lobes with .409 lobe lift ground on a 108 LSA installed at 107 ILC.
I used a low deck dual plane Eddy six pack intake with a set of 1970 440 automatic carbs modded by C and J Engr. in Whittier, CA for street and strip use.
That motor made 592 HP at 5000 RPM on the first pull shock
I ended up testing three different sets of carbs on that motor that day, the best set made 612 HP at 5500 RPM with 644 Ft. Lbs. torque at 4500 RPM, the worst set, new 1971 440 automatic carbs, made 5 HP less with 7 ft. lbs. less torque boogie
That motor exceeded my wildest hopes and made me open my mind on how to build pump gas Mopar BB stroker for street and strip cars devil
Good luck on your deal thumbs
Big is best, C.I., cam, heads, carb and intake size, good stall converter, biggest tires you can fit and light is right on rotating parts like the rods, pistons, valves, rocker arms, wheels and tires and crankshaft and car and driver weight grinthumbs

Last edited by Cab_Burge; 01/26/21 05:23 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)