Matching pair of complete freshly assembled "BRODIX" ported -12 15 degree Small Block Chevy cast aluminum cylinder heads. Freshly cleaned, crack checked & pressure tested, performance valve job and resurfaced. These heads have down nozzle holes. They current have removable -5 port plugs installed (see attached photos).Good condition, ready to be bolted on and used. Manley Titanium 2.150 o. X 11/32 stem intake valves. Manley Severe Duty 1.600 o. X 11/32 stem stainless exhaust valves.
Manley roller valve springs w/dampners 1.580 o. Seated height 1.975", Open height 1.250", Spring rate 655.4 lbs, open force 711.9 lbs, seated force 236.7 lbs.Coil bind height at 1.118. Freshly cleaned, crack checked & pressure tested, performance valve job and resurfaced. These heads are in Good Condition and are ready to be installed.
Int CFM -70.6 147.4 221.1 281.8 311.0 320.7 329.3 334.6 Exh CFM- 58.2 118.8 164.5 213.8 234.5 241.7 244.7 245.7. We inspect and describe the items that we sell in a very highly accurate detail. We will immediately attempt to correct any issues that arise. The prices of packaging materials have gone up as well.Chevy gm usac nostalgic gasser nhra ihra dirt late model rat street rod dart vintage midget open wheel. The item "BRODIX SBC -12 15 DEGREE HEADS drag race sprint car dirt late model hot rod" is in sale since Saturday, July 6, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Other".performanceparts" and is located in Dodgeville, Wisconsin. This item can be shipped worldwide.