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The LS3 cylinder head that proves Flow Bench numbers dont mean everything! In real world testing on a LS3 stroker engine, matched with our intake manifold, this cylinder head delivered 808hp & 634ft/lb of torque on Dandy Engine's engine dyno!! Our new to market Higgins CNC ported Brodix LS3 head has adressed the design problems found in the LS3 head, we have kept the cross sectional area sized correctly throughout the entire port for un-matched air speed and with only 247cc intake runner (3.0" m

775hp / 600 ftb LS3 For Sale Our testing is never done at Higgins Race Head’s and having some awesome local suppliers around helps when we want to test out our manifold and head packages. In this case we were able to put together a basic 416” LS3 stroker designed from the outset to run on pump 98 octane fuel. The bottom end is nothing exotic and comprises of a 4.00” stroke X2i 4340 crank, some 6.125” X2i conrods and 8 off the shelf CP Bullet pistons all from Kavanagh Auto Parts. We have used a f

I know quite a few of you have been waiting for these 11* ls3 heads. Here's our first version. We've dubbed these heads as the "Haymakers." 11 degree, .750 deck, 6 bolt meaty castings. "A type of boxing punch, a wild swing with all of a person's might to knock out the opponent" This is the 2.125/1.600 valve version. The stock ls3 valve is 2.165, but has been known to be too big of a port and too big of a valve for some applications, thus, the creation of this program. This port is aimed specific

LS Engine Performance - LS Power For Less