340 horsepower

My 340 in my Valiant is about 500-550hp. It runs 11.20s @ 121 @ 3150lbs race weight. Which is about 435 at the tires.

'73 340 block (half filled)
4.10 bore (old heavy TRW pistons .060)
3.31 stroke (stock 318 poly)
Eagle SIR rods
X heads, mild porting 2.05in / 1.625ex
Comp Cam roller, .630 in / .631 ex lift - 252in / 258ex duration @ .050
Compression approx 14:1
Dual 660 center squirters (the right single four would be just as good on power)


Chuck