WebOct 1, 2005 · We also found that the intake valve in the Vortec head is 2.060 inches in diameter, and the exhaust is 1.72 inches, which is small for a 454ci engine. We took the heads to Superior Automotive... WebThe vortec 350 is a really good motor with a good ignition system and terrible fueling. The LT1’s of the same era have great fueling and a terrible ignition. It’s going to be expensive but aftermarket intake manifolds exist for the vortec 350 intake bolt pattern on the heads, or just swap heads too while you’re at it.
The Complete Cylinder Head Guide for Chevy Small Block Engines
WebEasy Vortec Head Porting with real flow numbers! Part 2 Its very easy to "over port" vortec heads Watch this video for tips and tricks to get your vortec to flow better. Easy Vortec … WebLARGE-PORT VORTEC BOWTIE HEAD ASSEMBLY Completely assembled, ready to bolt-on Airflow (281 cfm @ 0.600") 225-cc intake ports 77-cc exhaust ports 65-cc combustion … birmingham property for sale zoopla
porting vortec heads????? Powerboat Forums at SpeedWake
WebNov 2, 2010 · The Vortec heads will make 400hp or more out of the box. I've always heard there is no gain in porting them and to leave them alone. C cfm Registered Joined Mar 14, 2003 18,950 Posts #4 · Jul 19, 2010 The big thing is, that they are totally fine to 400-425hp then have issues moving more air for more hp than that. WebNov 5, 2024 · The entire video is chocked full of good information but the things that catch my interest is about the 30 degree valve seats instead of 45. Full radius in the valve job or … WebSep 27, 2024 · The Vortec head features a very large boss at the base of the valve guide that measures 0.850-inch in diameter and is used to locate the 1.250-inch outside diameter (O.D.) valve spring. The head uses 0.560-inch I.D. seals mounted directly on the top of the guide. This guide boss is also very tall. dangerous goods shipping training courses