400 builds-anybody?? NON STROKER!

68 HEMI GTS said

Guess my point is rod ratios are somewhat over rated. Longer rods in a 400 is a pointless expedition unless your trying to turn some unreal rpm’s. It already has a 1.88 out of the box. What are you going to gain. Maybe a little more piston dwell at TDC, smaller piston, not worth the effort.

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More mid and upper rpm torque, but a small amount , maybe for a dedicated track car after oiling system is turned to dry sump.

2 to 1 is deemed ideal for very high rpms, formula 1 lives by it.

Chrysler was very much into the idea of rpm capable engines, they loved developing for NASCAR and there is quite a bit more potential in all of their engines than most others which were mostly limited to their very top performance line. Sbc leaned to short rod as a by product of increasing torque by stroke so that they had 'decent' small block truck motor, lower rod ratio can help out of the hole some and more acceration from bdc/tdc could utilize the ...ill keep it simple, the heads they had. Just deleted 20 lines so I don't go on a AJ novel trip. Lol