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**bigmac73** · 07-10-2014, 01:43 PM

call me crazy but i do not see any markings on those heads that say GM, I would ask to see the front of those to check the "saw tooth marks" or should there be more markings on them from GM???

now if i am wrong about the markings , Please somebody let me know,

i found out the hard way when i pulled my heads off and found out they where Chinese knock off vortecs, from my crate engine

07-10-2014, 01:43 PM	#22
bigmac73 Senior Member Join Date: Mar 2012 Location: Chesapeake, Va Posts: 1,275	Re: Engine Build ? call me crazy but i do not see any markings on those heads that say GM, I would ask to see the front of those to check the "saw tooth marks" or should there be more markings on them from GM??? now if i am wrong about the markings , Please somebody let me know, i found out the hard way when i pulled my heads off and found out they where Chinese knock off vortecs, from my crate engine __________________ Mike 72 C-10 Cheyenne off frame resto and Upgraded to 4 wheel disk, Tilt, Dakota Digital Dash / Rear slider. 421 SBC / TH350 3000RPM Stall Progression Ignition /Holley 750 DP/3:73 gear Eaton Limited Slip unit / 2 1/2 exhaust glasspacks