Oversquare B20
Does anybody have any experience with building or running an engine similar to this:
B20 block and rods
B16 crank and head
You end up with an 84mm bore, 77mm stroke, r/s ratio of 1.78:1, and 1.7 liters of displacement. The only downside is you would need aftermarket pistons to get a decent compression ratio.
I figure you can find B20B shortblocks for pretty cheap and B16 cranks for 200 or less. Then I could use my LS rods, sell the rest of my engine towards a PR3 head and forged pistons.
Any thoughts about the power or location of the power with this kind of set up?
B20 block and rods
B16 crank and head
You end up with an 84mm bore, 77mm stroke, r/s ratio of 1.78:1, and 1.7 liters of displacement. The only downside is you would need aftermarket pistons to get a decent compression ratio.
I figure you can find B20B shortblocks for pretty cheap and B16 cranks for 200 or less. Then I could use my LS rods, sell the rest of my engine towards a PR3 head and forged pistons.
Any thoughts about the power or location of the power with this kind of set up?
You'd effectively have a 1.7 liter CTR motor. Power band would be located pretty high, like the B16, but the displacement should help w/ the low end. Sounds like a good idea, but could end up costing a lot more than expected w/ the custom parts.
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FlatCRX
All Motor / Naturally Aspirated
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Nov 27, 2007 11:10 PM




