World Production Merlin Grumpy Jenkins Cast Iron Heads for Big Block Chevy part # 043-C with Comp Cams mech roller springs part # 951-16 Comp Cams Titanium 10 degree retainers Manley Guides Stainless Steel Valves. these list at Jegs for $2685.00 will out perform "any" cast Iron BBC heads on the market. Casting # WOR-043C, Matrial high Density Cast Iron Valve sets intake (integal) exhaust (hardened) Spring seats Machined for 1.560" can machine to 1.6525" valve diameter. 2.300" intake, 1.880" exhaust and 11/32" stem Manley Guide plates for big roller push rods, Intake runners 320cc exhaust ports 137cc can be greatly enlarged combustion chamber 119cc valve cover rail raised valve angle 24 degrees. these can produce alot of power over any other cast heads for either blower motor or naturally asperated. These heads are virgins never been worked since bought, can be punched way out or just bolt on for instant power compared to other heads. will take $1200.00

thats a steal
