[FOR SALE] Molnar Technologies 4340 Forged Steel 470" 3.91" Stroke 383-400 "B" Block Stroker Crankshaft - New

[PROSTOCKTOM]

Brand new Molnar Technologies 3.91" Stroke 383-400 "B" Block Stroker Crankshaft.

2.200" BBC Rod journals. 6.450" min. rod length. 4.375" Bore x 3.91" Stroke = 470 Cubic Inch

Note: All Molnar "B" Block Crankshafts are design to use BBC Chevy 2.200" journal rods.

On the shelf and available to ship within 24-hrs. of payment on business days. $997 plus $99 flat rate shipping anywhere in the 48-states. Total cost $1096


I now only accept PayPal Friends and Family, Bank Check, or Personal Check with time allowed for check clearance.

Thanks for looking,
Tom

 

[PROSTOCKTOM]

Still available

Tom

 

[PROSTOCKTOM]

Still available

Tom

 

[PROSTOCKTOM]

Still available

Tom

 

[PROSTOCKTOM]

Still available

Tom

 

[JDMopar]

Tom, which rods provide the best rod ratio with this crank when making a 470 with a 400 block? B length or RB length?

 

[PROSTOCKTOM]

With the difference between a 6.535" B length rod and the 6.76" RB length rod on a 3.91" stroke you're looking at a 1.67 rod stroke ratio vs 1.73 rod stroke ratio.

The first thing in deciding this is your intended use. If it's a track only engine then I would probably go with a 6.76" rod to get a lighter piston.

If it's a street engine you could go with either length. I would most likely let piston availability guide my length choice over anything else and try to avoid a custom piston due

to cost and the time frame when ordering them.

Thanks for asking,
Tom