replicaracer43
Grumpy Old Man
- Joined
- Oct 10, 2008
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It's easier to get compression in a larger bore, the small bore diameter hinders that. That's why a 273 requires a dome piston to get above 10 to 1 where a 340 can do the same with a flat top. The smaller bore also slightly limits flow.....the 273 has basically no advantage over a 318