I have a set of 5.3 heads with low miles to sale. I used the 6.o heads instead ot these. I would like $200 plus shipping.

 

What year are they? Casting #?

 

Yeah, year and casting # would be nice. Where are they coming from?

 

The casting numbers are #862. The year is 2003. I live near San Francisco California. Sorry about that.

 

Did th 6.0 heads bolt right up? What kind of performance increase did you get?

 

They bolted right up. They are suppost to flow better, but they lower you compression ratio. I needed the lower CR for the turbo set up. I dont have any numbers yet, I am still in the tuning stages. My boost controller spiked on the dyno, with the computer pulling timming, and it made 320hp and 455lbs at 4000rpm (rear wheel). Oh yeah! it spiked from 9-10 psi to 22 psi, from 3500 to 4000rpm. Talk about craping your paints. I held together thow, at 22 psi. not bad!