im no rocket scientist but...

[chevysbest92]

i bought my truck from a guy near my college, he told me there is a 250 in it, i was tearin it apart today and 230 is stamped on the side, were these even offered in 66?

so my next question now that my worlds been turned upside down,lol, how are the 230s on gas matted to a 4 speed? not sure what my final drive is tho,

ive always had v8s in my life, but i want to keep the factory look going, so i want to see how well this is on gas, i wish i could drive it , but so much more work to do

[Frizzle Fry]

My 64 has a 230. Gets about 15mpg with the granny box. I'm sure it could be improved. These I6's don't have the most efficient head design.

[bubba327]

When I checked my block numbers against Leo's 6 cylinder builders manual, I discovered that 230 and 250 blocks are identical and 194 and 230 cranks are identical. So I have a 1970, 250 block with a 194 crank which makes it a 230. Mine is a great running motor, I thought about a V-8 but will run the 6 until it drops!

[aerotruk63]

A 194 head on a 230 or 250 ups the compression ratio. It's an old hot rodders trick. There are plenty of modifications you can do to a I6. I've got an I6 in my truck. Like any motor you can go as crazy as you want. Keep it stock and they'll run forever. You'll enjoy the economy of a 6. Clifford Performance 6=8 has some nice stuff.