303 rwhp, 318 rwtq
Electric Water pump (+10 hp)
180 degree 'stat
Underdrive crank pulley (+10 hp)
PHP intake spacer
Ported lower intake manifold (not short runner)
Ported, polished upper intake manifold, port matched to TB
BBK twin 62mm TB
Metco CF intake tube (larger than OEM, larger than K&N, smooth bends)
90 mm MAF
K&N conical filter & shield from K&N CAI kit
EGR flow restrictor
Denso IT20 plugs
Plasma booster
Kooks headers to custom setup: 2-1/2" pipe, Magnaflow cats, Bassani x-pipe, Edelbrock RPM mufflers, stock 2-1/4" system after mufflers, stock tips (+22 hp with headers and cats, the rest had already been upgraded and dyno tested)
With the following drivetrain mods it turned 13.3 in the 1/4
PI Stallion 2800 stall torque converter (helped with quicker revving and 1/4 mile times, not with peak power)
Reinhart/Art Carr transmission kit (much better 1/4 mile and street performance, no change on dyno)
4.10 gears
Dynotech MMC driveshaft (4.10 gears caused higher driveshaft speed which caused trans tailshaft leaks, the dynotech shaft fixed it)
365.4 rwhp, 368.9 rwtq
All of the above PLUS 5.3L BB/S built out the wazoo:
Heads: Ported, combustion chambers cleaned up, oversize valves, oversize hardened seats, hardened guides, ceramic coated chambers/valve heads/exhaust ports, teflon coated valve stems/cam caps/cam saddles, drilled out oil return holes, Cryo treatments, REM micro-polished followers, Comp beehive springs, Comp Extreme 258 series grind #106260, 222/224 duration, 475/450 lift
Bottom end: Cryo treatment and REM polishing on Kellogg forged stroker crank and Pauter cross-beam rifle-drilled billet rods, longer rods with raised wristpins in CP 9.5:1 forged pistons with ceramic and teflon coatings, teflon coated bearing inserts, cryo-REM treated cam gears and chains, billet crank trigger ring, Melling oil pump with billet gears, windage tray, main girdle, ARP rod bolts, cam bolts, main studs & head studs, plus 60 lb injectors, CPR fuel rails, twin Cobra fuel pumps