How much is porting a head?
That could be a $1,000 question, if you go the fully ported route. On the low-end, you’re looking at around $200 for a professional three-angle valve job with the existing 1.94/1.50 valves. Add bowl-porting and a set of big valves and you move up into the $500-$700 range.
Is porting a head worth it?
It’s not worth it. You won’t feel the gains in the seat of your pants with a free-flowing air filter, a “tornado” air intake or a fuel system additive. At best, you’re improving your fuel efficiency. At worst, you’re wasting your hard-earned cash.
Can you port your own heads?
The best way to save the most money while reaping the same performance benefits is to invest your own personal time into porting and polishing the cylinder head yourself. The porting and polishing process is broadly the same for all cylinder heads.
How many HP is a 400ex?
How Much Hp Does A 400Ex Have? The engine output of a 400EX stock is between 250-30,000 horsepower.
How much does it cost to port an intake manifold?
Stage II: $250 Suggested porting for most intakes. Includes port matching and blending of the plenum and its dividers. Stage III: See below for pricing Complements any head porting for maximum horsepower. Includes full porting and polishing of the inside of the intake manifold.
What kind of parts can I get for my Honda 400ex?
Advanced Machining Services Honda 400EX performance page. A vast array of OEM and aftermarket parts for your 400EX. Head kits, Cylinder kits, Engine kits, seats and guides replaced, cams, valves and spring kits, multi angle valve jobs, oversized valves installed, porting, big bore head mods., cylinder boring/honing, big bore kits.
How much does it cost to rebuild a Honda 400ex engine?
Advanced Machining Services, Honda 400EX engine rebuilds, crank rebuilds, transmission repair. Box it up and ship it. 400EX 440 Big Bore Cylinder Kit $459.00 Don’t want to dig into the motor, no problem, box it up and ship it. We’ll do the top end (head & cylinder) set valve lash, cam timing, install new piston kit add $249.00 to below prices.
How much does a trx400ex 440 cost?
TRX400EX 440cc Midrange Motor Package……$1095.00 Kit includes: CT 440 big bore kit with a JE hi performance piston kit, cylinder re-sleeving, sleeve, Web cam, head inspection, cleaning, Race valve job, head re-assembly, CT head porting, and top-end gasket set.
What does a trx400ex hot rod kit include?
TRX400EX Hot Rods Heavy Duty Complete Bottom End Kit – Available in Stock Stroke or +4mm Stroker (*Stroker Crank requires special piston). This kit includes main bearings, seals, gaskets, and crank. TRX400EX Web Camshaft – Available in MX, TT/Drag, and Dune build.