The VG33E information thread - Z31 Performance
Jul 20, 2009 · The 3.3's valves can be identified by their casting "EF-3". The valve stem diameters, guide diameters, and seat angles are the same between the 3.3 and 3.0. Both the intake and exhaust ports have a much smoother casting than the 3.0's V52, 21V, and 85E heads.
VG33 info page - Nissan V6 Forum - HybridZ
Feb 8, 2010 · The 3.3's valves can be identified by their casting "EF-3" I have yet to find a source that list valve seat angles. Both the intake and exhaust ports have a much smoother casting than the 3.0's V52, 21V, and 85E heads.
RedZ31.com: SOHC Nissan VG30E/ET head work - Suomi Z . Net
Gains from porting are largely dependant on the valve seat size and shape, short and long side radius, as well as the shape of the tulip on the valve itself. Having a set of VG30 heads professionally ported can cost anywhere from $300 to $2000, depending on who does it …
running out of ideas & $$ fast - SOS! - XterraNation
Jul 27, 2021 · - Cylinder Head Gasket (includes: remove carbon and check surfaces for warpage, asjust idle speed, ignition timing, valves and clean and adjust spark plugs) - Cylinder machines and repair, valve repair, replace valve seats
VG33ET Swap, What it takes to build a Turbo 3.3L VG
The 3.3's valves can be identified by their casting "EF-3". The valve stem diameters, guide diameters, and seat angles are the same between the 3.3 and 3.0. Both the intake and exhaust ports have a much smoother casting than the 3.0's V52, 21V, and 85E heads.
Nissan 3.3 SOHC Cylinder Head Pair V6 Casting #: OWO Frontier …
- 3-angle grind valve job on all valve seats & vacuum tested to ensure perfect compression. - PCD milled to ensure super smooth finish. (PCD stands for Polycrystalline Diamond, is best for aluminum heads).
vg33 lifter failure - Nissan Frontier Forum
Nov 25, 2023 · Worn Exhaust valve guides could exacerbate the issue. I would Also also pull the fuel rails, replace all injector baskets, and possibly flow test them, or replace with a known refurbed set. Fuel injectors dribbling do NOT perform well in ANY situation.
VG33 engine build (inc swapping out VG30) - NPORA Forums
Nov 29, 2014 · I cut up an old rocker cover and stuck it on the right cylinder bank to see if it was valve noise or anything, all looked ok, and of course being a pain-in-the-ass VG engine, the manifold covers the left bank so nothing could be done there.
Building A '02 VG33E High Performance Engine! - Nissan XTerra …
Mar 3, 2022 · You were right there. I would have done a 3 angle valve seat job to complement the flow work.
VG33ER Performance Parts LIst 300hp+ - Nissan Frontier Forum
Feb 9, 2007 · Another viable option for tuning is to use the Greddy E-manage. If you want to get serious about tuning, AEM standalone EMS is a badass option.