These heads---produced for the late 1990's 5.7L Vortec engine---have airflow characteristics that are better than even heavily modified, early GM castings and can support over 400 horsepower with careful intake/carburetor and camshaft selection. If selecting an aftermarket head, avoid choosing heads with too large of an intake port.
1998 Chevy 350 5.7L Bare Engine Block $150 (Olympia) ... VORTEC 350 HEADS $400 (pdx) pic hide this posting restore restore this posting. $600. favorite this post Dec 23
Chevy Chevette 1.6 SOHC : 300 (4) (also Opel) Chevy Vega L4 : 285: Chevy II 153 L4 : 350: Chevy L6 194-250 : 440: Chevy L6 292 : Chevy L6 216/235 : 630 (2) Chevy V6-90 229, 4.3 : 425: Chevy V6-60 2.8, 3.1 : 350 (2) Chevy small block V8 : 575 (generic for '60s-'70s motors) Chevy small block V8 : 535 (1) ('59 Corvette 283 w/alum. intake) Chevy V8 ...
it's unfortunate the vortec 4.3 heads do not mimic the infinite awesome of the vortec 350 heads. maybe i shouldnt bother touching the engine until it blows up and by then have found a deal on an all aluminum 5.3. fine.. be that way..
Details about SBC SMALL BLOCK CHEVY Aluminum Intake Manifold Vortec Head Dual Plane AirGap 350. ... Valve Cover Gaskets Rubber Fit for Chevy 283-327-350-383-400 SBC .
Chevy 350 Vortec Heads. We offer a variety of Chevy 350 Vortec Heads for your automotive needs. No matter what you're driving, we have the right Chevy 350 Vortec Heads for your vehicle
Increased power for your 1996 to 2000 350ci Chevy Vortec 5700 V-8 engine GM LS V-8 engine swaps seem to be all the rage, and for good reason. They deliver a lot of power and efficiency with little effort.
The iron Vortec heads are certainly less expensive at only $400 for the pair versus the Summitt heads at $800 per pair. But the Vortec heads also benefited from pocket porting. In the "Part IV" story (Dec. '99), we tested the Vortec heads before and after porting and saw a 13hp gain with no substantial increase in torque.