Pure Stocker Thread

[Dan Fahey]

Originally Posted by Harry 6674

Most stocker engines built to the blueprint minimums have a much higher compression ratio then stock. The race gas helps.

Yeah some higher compression is realized when Blueprinted.
But closer to the advertised Compression Ratio.

Deck Block to Minimum Rating, .030/.070 Overbore, .015 over Crank.
The Overbore helps unshroud the Valves and breaths little better.
But cannot see more than a 1/2 point increase in Compression.

Maybe wrong ..my 2 Cents !!

Still 93 Octane runs well in my LT1.
Which has 10.5 to 1 Compression and running 36 degrees Timing.

Figure that 100% gasoline would run a better ET than 10% Methanol Blend.
Because the Methanol reduces the BTU produced...

My 94 Caprice LT1 Wagon seems to have lost 1 mpg in cruising.
Tougher to get 24 mpg, getting more like 22 and 23 mpg fill ups.

Dan