Honda GX390 Race Engine

Honda GX390 Race Engine
Highest quality big block available!

Engine Includes:

Open Element Air Filter Assembly
Removal of Governor
Advanced Timing
Billet Steel Rocker Arms
Billet Rod
Billet Flywheel
UT1 Coil without Rev Limiter
Full Ported and Milled Head
Stainless Steel Valves (OS on Intake)
Aluminum Retainers & Keepers
Dual Springs (Single with TQ Cams)
Choice of Cams
Chrome Moly Pushrods
ARP Bolt Kit
Choice of Carbs
Dyno Tested

Engine Size Options:

88mm (Standard) Bore, Stock Stroke: 390cc
88mm (Standard) Bore, +.160” Stroke: 414cc
88mm (Standard) Bore, +.200” Stroke: 420cc
90mm Bore, Stock Stroke: 407cc
90mm Bore, +.160” Stroke: 433cc
90mm Bore, +.200” Stroke: 440cc

*Note: Filter should be sprayed with K&N type oil, especially in dirt applications. Oil not included - click here. Engines are built-to-order and take approximately 2 to 3 weeks to ship, depending on the season.

*We offer $10 off shipping costs for each engine if purchasing 3 or more. If shipping cost exceeds $130 in shopping cart, contact us for alternative freight methods. We can typically ship a pallet of engines for $130-$200, depending on delivery location.