What is the difference between vortec heads and regular heads

TPI heads don't make the same power as the Vortecs. Sep 27, 8. D'oh, missed that sticky at the top, thanks for your info guys, youve come up trumps again!

Sep 27, 9. You guys are confusing TBI heads with vortecs. Vortecs were '96 up. On the front of the head it should be a little wavey looking thing on it. TBI heads are crap. Sep 27, Messages: 10, Likes Received: 1. You must log in or sign up to reply here. Show Ignored Content. Share This Page Tweet. Your name or email address: Do you already have an account?

No, create an account now. The intake bolt pattern is different and utilizes an eight-bolt attachment. The bolt pattern and the number casting is the quickest way to differentiate a Vortec Head from a regular head. The Vortec head is available in two casting numbers and that offer identical performance virtues.

You can also check the casting mark on the end of the head and check for three triangular saw-tooth casting marks that indicate Vortec potency. The intake valve seat of the Vortec head has a three-angle grind straight from the factory and the combustion chamber design is a radical departure from former GM heads utilized in the market.

The Vortec combustion chamber is a kidney-shaped design that promotes better combustion and will have the spark plug located near the center of the chamber. The regular head utilizes a 90 degree intake bolt angle while the Vortec makes do with a 72 degree bolt angle. Experienced mechanics are all too familiar with the lay out of a Vortex head as all the attachment bolts point straight up when the head is bolted to the engine. Members Current visitors. Log in Register.

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You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser. Vortec VS non-Vortec heads. Thread starter kewlkatdady Start date Nov 16, Joined Sep 12, Messages I'm replacing the motor in muh boat due to water in the crank case