WebBase price package includes porting your supplied cylinder heads Stock 2.165 intake valves Stock 1.59 exhaust valves Stock retainers, locks, and valve seals Prices include checking your valve guides for proper size, if … WebApr 6, 2024 · Your question relates to porting the Vortec heads to improve the flow, which is a great idea. The Vortec heads offer great intake port flow despite the rather small 1.94-inch valves. ... 1993 5.7 vortec with port and …
Cylinder head porting - Wikipedia
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What a Port and Polish Does and How to Do it Yourself
WebThese are CNC ported heads. All work is done in house on our own 5-axis Rottler CNC, They come with the following: New Qualcast Stainless Steel Swirl Polished Valves Intake is 2.02 and Exhaust is 1.59 Valves. New Qualcast DUAL Springs for up to .650 lift. New retainers, spring seats and valve seals. WebPorted HEMI Heads Upgrade your HEMI with a set of ported heads by Arrington Performance. Our heads are CNC ported and single point valve jobbed to provide the best horsepower and smoothest air flow. Filter Results: Filter By Manufacturer: Arrington Performance (5) Thitek (1) Filter By Price: $2,299.00 - $2,438.99 (4) $2,579.00 - $2,718.99 … WebNov 15, 2011 · Polishing is always the way to go if you are uncertain about WHAT PARTS OF THE HEAD need to be ported. Smoothing the flow tract of the intake and exhaust is where the power is at. Lots of heads come polished from the factory nowadays. You NEVER polish the intake side of the head. Everything 9er said is 100% the truth. chunkbounds shader