2270 Build, Need advise Options

[pilothyer]

I am interested in building a 2270 engine. From what I can see I will need a stroker crank with a 78 mm throw. I am concerned about which rod to choose. I have seen stroker cranks with VW type 1 journals as well as 2.0 liter and chevy. I have noticed variations in rod lengths as well. I am in need of some advise on a good, proven combination. I know there are many good engine builders on his forum that could share their knowledge on this subject so please do...............Thanks

[Jake Raby]

. Just remember that HP=heat.

Not if it adds efficiency.

Its all in the combo.

[DBCooper]

. Just remember that HP=heat.

Not if it adds efficiency.

Its all in the combo.

Not correct. Efficient or not more HP equals more heat. That's physics.

For proven 2270 parts combinations try www.shoptalkforums.com, the Type4um. Fifteen years of discussion there. What's "best" is a matter of opinion, but generally 96mm sleeves, a 78.4mm crank (offset ground 2.0) with VW T1 rod journals and T1 rods, I or H-beam. With that combination the piston pin height is different, so the Keith Black for the application depending on the rod length you choose. Chromoly pushrods and 44x38 heads with a split-duration cam like a Web 86b/163. Look on Shoptalk for specifics, there are a lot of variations on those basics.

[Jake Raby]

. Just remember that HP=heat.

Not if it adds efficiency.

Its all in the combo.

Not correct. Efficient or not more HP equals more heat. That's physics.

Only if operating at WOT, or under heavy load, using that power.

Time and time again we find larger engines, making more power, that run cooler. This is due to the engine producing higher efficiency, not using as much of the engine's power to propel the vehicle.

We even see this when pushing around a 2 ton load. If the engine makes double the power, it still takes the same amount of power to propel the vehicle, meaning a lesser percentage of the larger engine's net power is being used, which means the engine sees less percentage of load when compared to stock.

The car doesn't know that the engine is larger.