The Dodge Gen-III HEMI market is one of the hottest segments of the automotive aftermarket, and it’s about to get even hotter. Edelbrock, which made its first set of aftermarket heads in 1945, introduced two new sets of HEMI cylinder heads at the recent Performance Racing Industry Show in Indianapolis.
And that’s not all. This legendary company also treated fans of the GM LS, big-block Chevy, and Oldsmobile 350/403 engines to an early Christmas present.
The Victor CNC Gen-III HEMI heads will be sold bare and are designed to accept 2.250-inch intake and 1.650-inch exhaust valves.
Jamie Wagner, Edelbrock’s product manager for cylinder heads, crate engines, and Power Packs, says the company is finally releasing the CNC version of its Victor Gen-III HEMI castings as a bare head. There is an as-cast Performer RPM head coming that is more street-oriented.
The Victor CNC head was introduced earlier in 2024, but he said it is finally going into production in early ’25. Wagner said there is a lot of interest already in the Victor head.
The Victor heads feature 72cc combustion chambers and 225cc runners and are designed to accept 2.250-inch and 1.650-inch intake and exhaust valves.
The big improvement for the Performer RPM HEMI head (PN/61135) is it comes with an intake port raised 0.125-inch over stock.
“That gives you a much better line of sight on the port, and the flow is very, very good on these,” says Wagner. “That raises the spring pocket an eighth of an inch also, so it has a longer valve than stock.”
The runner size on the Performer RPM Gen-III HEMI head is 215cc with 73cc chambers. Intake valves measure 2.165-inch, and the exhausts 1.650.
Still, all OE valvetrain parts will bolt up to the RPM head, as will the factory intake and exhaust manifolds. Runner size is 215cc with 73cc chambers. Intake valves measure 2.165-inch, and the exhausts 1.650.
For the ever-growing LS market, Edelbrock will have a revised version of the old RHS LS3 heads, with LS1 and LS7 examples to follow. These will now be branded under the Edelbrock E-Street line. They feature 260cc ports and 96cc chambers, with 2.165-1.590-inch exhaust valves.
What makes the aluminum alloy E-Street for GM LS3 (PN/77621) different, however, is that this version comes with Inconel exhaust valves instead of standard stainless steel to cope with elevated exhaust temperatures in high-boost or nitrous applications…
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