The New Generation 427 acclimated in the Guldstrand Signature Edition Corvette is congenital by Katech, Inc., from blueprint developed by Guldstrand accurately for the ceremony car. Among its abounding accomplishments, Katech additionally produces the engines for the Corvette C5-R chase cars that won at LeMans in 2001 and 2002 as able-bodied as every American LeMans Series chase so far this year.
Beginning with the LS1 5.7 liter V8 block that comes in the basal Z06 Corvette acclimated for the Signature Edition car, Katech bores out the branch butt sleeves and installs sleeves of its own accomplish which aftereffect in a 4.10-inch bore and 4.0-inch stroke. The banal LS1 has a bore/stoke of 3.898/3.622 inches. The absolute block is re-machined with batten animate acclimated for capital caps and both arch and capital address studs. Katech pistons are amid in the continued bores, and rings are file-fitted to absolutely bout the bore ambit of anniversary cylinder. Carillo rods affix the pistons to a 4340 artificial crankshaft.
The top of the agent uses Katech Stage III butt active with cc"d and ported agitation chambers. While the rocker accoutrements and lifters abide branch stock, titanium associates and stainless animate valves are active as is an adjustable timing set and a stronger aerial achievement timing alternation from the C5-R chase car. The camshaft has a aerial achievement contour with college lift and best duration, but charcoal absolutely streetable. The compression arrangement is 10.8:1. Fuel flows to the active through a Katech ported burke body.
