i need some extra money to fix my truck so i'm letting these go cheaper then i should really. They're 374 casting lt1 heads. They've been machined for 2.00/1.56 valves with 185cc intake runners, intake and exhaust have been ported (something similar to a stage 2 setup). The spring pockets have also been machined to accept larger diameter springs if desired. I'm selling these unassembled but if someone wants to go ahead and buy the parts i can assemble them for no extra charge. The intake and exhaust flanges on both heads have been milled to insure a proper gasket seal and the deck has been milled to a 56.2cc chamber after the chambers were redone. The guides have been cut down to accept .502 seals. The flow testing was done @28inches of water using Flow Pro software on a 4.030 Brezinski slider plate and 4.030 brezinski bore. The exhaust was flowed without a pipe. Numbers are as follows

Intake ---------- Exhaust
147.4 @.200 --116.0 @.200
207.1 @.300 --160.3 @.300
258.1 @.400 --175.2 @.400
264.9 @.450 --177.2 @.450
266.8 @.500 --178.6 @.500
270.6 @.550 --179.4 @.550
272.5 @.600 --185.2 @.600
275.8 @.650
278.8 @.700



Intake runners measure 185cc's, combustion chambesrs measure 56.2cc's.
I'm asking $650 shipped for these for a hopeful quick sale.

 

I will take them

 

Send me a pm and we'll go from there.