East Side Performance heads!!!
they are 5.3 heads, cnc'ed Dual springs. very very nice. they are flowing over 300 cfm, and seem to be making real good power.
Ken told me about them, but saturday was the first time i saw them and
the price is GREAT also, i believe he is selling them for $1500-$1600 compleat plus shipping.
very nice stuff.
Just an FYI for anyone looking for a GREAT set of heads for a great price.

2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.

and what are the port volumes?
i think my buddy will be doing a set to try to get a # with them. the dyno is good for braging, but the track is the real test. he will be doing it in a street car. stock tranny, vert, and rear. see what it does, but it wont be till spring.
i know the peak numbers are in the 300's
very nice looking and well doen head. the valve job looks Perfect. very nice stuff.
kind of wish this new guy did my LS6 heads, im sure they would be better.
Tested at .28 In Bore size 3.900
73 cfm .100
148.1 .200
196.4 .300
251 .400
281.3 .500
299 .600
301.7 .700
Hope this helps.
price is confirmed at 1600 compleat!! like i said, dual comp springs, verry nice stuff.
anything else, let me know. they can spec cams to work well with these heads also. packages are no problem.
NEW castings. not used cores.
hope this answeres everything, if not, shot and i will do my best to find out the info

2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.
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