WebCompared to the GM Vortec, the RHS head pumps the flow up with a solid 67 cfm compared to the GM head’s 51 cfm. That alone is a 16-cfm improvement, which represents a hefty 31-percent increase. One area not to be overlooked is combustion chamber design. An excellent head is one that offers solid flow, high velocity, and a high-techshaped ... WebMar 21, 2024 · From 1996 to 2000, GM truck and van 350 engines came equipped with L-31 Vortec cylinder heads. Built of cast iron, these powerhouse heads upped the horsepower of these engines by magnitudes. This is primarily attributed to the high port flow in the .300”-.500” valve lift area, wide bowl, and back-cut intake valve and exhaust.
Vortec L31 cylinder head
WebMar 15, 2011 · The Vortec TBI intake with EGR is close to $400 new and used ones don't go for much less than $250. It will require a driver side Vortec exhaust manifold or Vortec specific headers to run EGR also. Then you have to have a … WebSep 2, 2014 · It is a 2000 Vortec L31 5.7L, 10243880 block, 10239906 heads. The intake is an Edelbrock Performer 2116. No modifications were done to the block or heads for additional water flow. Hose running from top of water pump runs to top of heater core, bottom of heater core runs back to the intake manifold. jw_cad 文字入力 できない
Summit Racing™ Vortec Cylinder Heads SUM-151124
WebChevrolet Performance Parts L31 Vortec Cylinder Cast Iron Heads have set the standard for proven performance and budget spending . The best out-of-the-box head for the money! … WebJul 12, 2016 · Our engine started as a stock L31 with 65,000 miles on it. We had added a custom intake tube that runs to dual UMP filters because this truck sees extra-dusty … WebSep 6, 2024 · The Vortec heads also flow dramatically better than your existing heads. So this might add another 10 to 15 hp with the Vortec heads and now that 350 hp baseline is now closer to 375 to 380 hp—or roughly a gain of 25 to 30 hp! Selecting a Camshaft to Match the Cylinder Heads adu application