440 stock deck height

From my experience with quench. Used KB quench pistons, 906 heads, equalizing all the chamber depths, removing sharp edges in the chambers. .038"-.040" piston to head. Small [email protected] cam. Measured 9.7-1 compression. Stock intake, carb, exhaust, 3.23 gear 70 RT convertible. Will not run on 93 octane above 80 degrees ambient @36 degrees total. Was it worth the work to get quench? Nope.
Doug

AS I said sometimes you have to cut down the quench area
mostly with high boost or old bad combustion chambers

an example is the 915 style head which has a huge quench area
you have to watch quench with a domed piston
what pistons did you find probablamatical?

dvw said:

From my experience with quench. Used KB quench pistons, 906 heads, equalizing all the chamber depths, removing sharp edges in the chambers. .038"-.040" piston to head. Small [email protected] cam. Measured 9.7-1 compression. Stock intake, carb, exhaust, 3.23 gear 70 RT convertible. Will not run on 93 octane above 80 degrees ambient @36 degrees total. Was it worth the work to get quench? Nope.
Doug

Click to expand...

We just Machined/Built/Dyno'd another .030" over 440 last week,
* Cast Crank
* Icon 9953's with 5/64" Rings,
* Cleaned up the E-Streets with some Porting and Seat work,
* Port matched the Street Dominator.....
* Comp XE268H Hydraulic Flat Tappet Cam.......224*/230* @ .050
* stock stamped steel Rocker Arms so probably what ? maybe .450" Lift ?
* barely 9.7:1 with a .050" quench distance
* 34* Total Timing

470 HP @ 5,400 rpm with 510 Ft/Lbs down waaay low

Just a really fun little street engine that don't break the bank, nice idle w/good vacuum.

Built a 451, 915 heads, 509 cam, Street Dominator Intake, Holley 850- jetted rich, 13 to 1 C Ratio. Ran good on a 50/50 mix of 91 premium, and 100 race gas. Pushed the RR down the track in the low 12s @ 5400 feet. .037 quench. Street/strip car. It's a balance of cam, compression, quench, temperature, jetting, ignition timing, octane of fuel, and altitude. If any 1 is not right, it's gonna ping.