If you go to an extreme overbore to get the extra cubes you will actually
lose power.
The bores will flex. This causes two things to occur. First, you'll lose
ring seal, power goes right out the window. Second the bores will squeeze
the piston increasing parasitic friction loses.
When drag racers overbore (after sonic checking the block and literally
going through dozens of stock blocks to find good cores), they fill the
water passages with "HardBlock" or some similiar fill to support and
strengthen the bores. You can't do this in a street engine because of
cooling issues.
Steve Ekstrand, Pasadena, CA Driver: '00 Dakota CC SLT+ 4.7L 3.92SG 255's
Stacey's Driver: '00 Inferno Red Intrepid ES-3.2L-24V Autostick w/Leather
Race Car: 69 1/2 Road Runner 440-6 (ex-NHRA SS/GA future B or C/SA???)
Project Car: 69 Barracuda Notchback (Orig. 318, now 360w/Edelbrock Heads)
Homepage: http://sites.netscape.net/professormopar/homepage
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:49:00 EDT