Vortec cylinder head swap software

Americas favorite highperformance cast iron small block cylinder heads offer big power and bigger value. Castiron vortec cylinder head assembly completely assembled with 1. Ive seen vortec 305 heads that had the old style chambers, and a vortec intake pattern. It lacks the good combustion chamber that helps make the vortec head rock so well. These cast iron vortec cylinder heads will fit 1958 and later small block chevy engines, and offer a 20 to 40 hp increase over earlier cast iron small block heads. The 305 vortec head is not nearly as good performance wise. We also offer a disguise package to make this vortec head look more like a production chevy vortec casting. Enginequest, chev sb vortec performance cast iron heads, 170cc64cc vortec intake, assembled stage 1, pair. Features include fast burn combustion chambers, and a highvelocity lt1 port design.

Having the right tools for the job goes a long way in getting your gen iii pcmcontrolled engine swap running well. I have found myself in need of a new head on my 99 k2500, 454 vortec engine. Chevy vortec cast iron cylinder heads the chevy vortec head is an excellent choice for a variety of performance and race applications. Gen iii engine conversions always require calibration changes to a. I am mostly concerned for the proper head gaskets on this swap and the part number or the gm adjustable rocker conversion kit thanks, awaiting any and all replies guys. Tpi intake for the vortec head tech article chevy high. There are a few other parts needed for a lq4lq9 cam swap such as an ls2 timing. Because of this, it has become a very popular swap. Chevrolet performance 12558060 cast iron l31 vortec sb. Excellent flow produces broad torque and killer power. Chevrolet ck 1500 questions tbi350 vortec heads cargurus. Chevrolet performance parts l31 vortec cylinder cast iron heads have set the standard for proven performance and budget spending.

I took the heads in for a valve job and i have a crack in one of them. Cnc machines, however, allow you to replicate a particular set of wellported heads over and over again, and in half the time. Running the numbers on a variety of engine simulation software. Engine management systems guide includes indepth instruction and photos. Gm performance view topic l29 heads vs other bbc heads. Vortec smallblock build popular hot rodding magazine. Stock engine quest vortec heads flow 222 cfm intake and 145 cfm exhaust. I have the older block without that balancer in it, worked up a little with flat top pistons and big valves. Since its introduction in the late 1990s there have been a few versions of the factory vortec head. The intake face of a vortec head is cut at a slightly different angle than the firstgeneration sbc heads and features an eightbolthole intake manifold hold.

Before we put the gaskets in place on this racing head service castiron vortec cylinder head, a dab of silicone is placed in the corner of the cylinder head and engine block below the gasket. The name vortec can be confusing because gm used that name for their v6 and v8 truck engines as far back as 1985. Even if you plan on running a stock ls engine, you still need to tune out the. With our undercover porting the flow numbers increase to 245 cfm intake and 175 cfm on the exhaust. Smallblock engine intake manifolds and components chevrolet. Chevrolet vortec cylinder heads fast burn combustion chamber and highvelocity ports combine to produce big horsepower. Vortec heads can be mildly ported for additional performance and milled up to. There are many different ways to build an engine, and when the object is a 350. Aftermarket cylinder heads why you shouldnt just bolt them on trrc vortecpro duration. Tuning an aftermarket ecm is easy with supplied software. For many, the ideal situation is a cam swap that combines plenty of peak. Chevy performance sbc cast iron vortec cylinder heads jegs. There are a few other parts needed for a lr4 cam swap, including an ls2.

E q cast iron vortec small block chevy heads brzezinski. With this simple to make harness you can tune gm engine. Both the 305ci and 350ci tpi engines used iron cylinder heads, and the vortec would be a perfect swap. I read a couple postings on here about how junkie l29 heads are because they are designed to have very low timing advance and are smogger heads. These cylinder heads are ideal for applications up to 350 horsepower, but they require vortecspecific intake manifolds. Vortec cylinder heads new and used car and truck parts. New bare cylinder head fits 19992006 chevrolet gmc 5. Requires special intake manifold to fit the vortec bolt pattern.

This vortec inline fivecylinder introduced a number of firsts to gms line of truck engines. For a primer on the entire ls engine universe, read ls engines 101. Large port cast iron vortec bare cylinder head 225cc. Streetstyle vortec head test tech article chevy high. Gm performance sbchevy cast iron vortec cylinder heads 2 80912558060. Enginequest performance vortec heads competition products. Vortec bowtie cylinder heads come with bigger valves, a thicker deck surface and 66cc combustion chambers. This head fits many vehicles including the pickup, s10s15, blazer, tahoe, astro van, and others.

This lr4 engine upgrade guide is part of a series of ls. I used a valve that had a groove for an o ring seal. The flashscan software features more than 600 engine calibrations for. Covers all the criteria to consider when starting an ls swap project. You can drill and tap the cylinder head for the early style intakes but you must be very careful and if you make a mistake, the heads may be unusable. Chevrolet performance vortec cylinder heads 12558060. But i use as my daily driver and pull a inclosed trailer on occasions. Add to that the retainers are smaller and less tall and you get the extra clearance. Gauranteed for more horsepower through the venturi effect. I pretty sure that i read somewhere that the professional products vortec intake is just a cheap chinese knockoff of the edelbrock 2116 that has some casting quality problems and fitment issues where the intake runners are misaligned. That forced me to have the machine shop cut the guides more to keep that groove out of the.

This manifold is primarily intended for use with vortec heads on pre1996 engine blocks. Gm used the vortec name for several years before 1996 but only on 6 cylinder truck motors. This attention to detail and quality will save you time and money by keeping your gm product out of the shop and on the road. Thanks for the reply hotrod, these are definetely stock vortec valve sizes i believe 2. Are you looking for a good set of heads to up the performance factor of your vortec engine. Blocks manufactured in 1995 or earlier have thermostat bypass passage. The heads provide outstanding lowlift flow numbers the more air you flow, the more potential power and fast burn performance all in an affordable, castiron head. Gm performance view topic 93 tbi swap to 96 vortec. Featuring wideopen intake runners, efficient combustion chambers, and a highperformance valve job. Atk remanufactures complete cylinder head assemblies with a higher quality than new.