im installing a cam soon and dont know much about heads how does this info look?

Heres a fresh set of Small Block Chevy aluminum LT1 high performance cylinder heads,casting # 10128374. These heads have 53cc combustion chambers. The heads were just freshly machined on a Sunnen cylinder head machine. H.P valve job, clean up milled surface,performance springs 115Lbs. seat pressure,290 open pressure, will handle .550 lift, premium valve stem seals and fully ported intake&exhaust bowls&short turn radius. New stainless steel valves 1.94Intake,1.5 Exhaust with undercut stems for more flow. These heads are an easy 30-40 Hp bolt on increase with the porting work and undercut stem valves. This vortec style port is a very good proven design even in its stock form but with the improvements done to these heads be ready to feel some increased power for your SBC !!

 

How much? If I were you, I would pick up a set of untouched stockers from a 92-95LT1 and send them to Lloyd Elliot for a good port job.. Best bang for the buck there!

 

No matter what they say was done. Unless they have flow numbers, I wouldn't buy them.

 

are those from that guy on ebay with the performance shop susposedly. if it is, i think his flow numbers were lke 240? i would go with the LE heads

 

LE heads own most of the others that you will come across.. Esp for the money, the power gains cannot be beat.

 

For the SAME money, They CAN be, and HAVE been.

 

My heads only flowed 248 with stock size valves. All these LE guys should be blowing my doors off