Borowski Race Engines

fast air-to-water intercooler for lsxhr intake manifold

408ci ls long block for na

555ci big block chevy long block, hydraulic roller na, street

680 hp, naturally-aspirated, 408 cid, hydraulic-roller, ls street engine - bare or complete

cnc-ported cid, 6-bolt, lt4 cylinder heads, assembled

454ci dart aluminum ls next tall-deck short block, ls next2 upgrade, callies billet crank and ultra h-beam rods. includes bre's block honing service

lt1/lt4 cylinder head porting & upgrade service

cnc ported afr cathedral port, 6-bolt ls cylinder heads - assembled

boost-ready, dry-sump, lt4 long block, 376 or 416 ci

gm lt4 cylinder heads, cnc-ported with hardware upgrades