Holden 6 cylinder head identification. The head is for most displacement HQ era red 6's. Mar 31, 2022 · Trying to indentify the head that is on my 1966 Hr, block is a 186 but i have been told the head is off a 202. High comp 173, XU1 and I think high comp 138 use different heads. Suits 202 high comp, 173 low comp and I think it may also have been used on low comp 138 as well. This should be at the front on the left hand side just behind where the thermostat housing goes. Yella Terra has reintroduced there aluminum 12 port Holden 6 cylinder head into the Australian market. The basic block continued in the next VC model but painted blue and fitted with a brand-new 12 port head, a 2bbl Rochester carb, electronic ignition, improved Starfire con-rods and a fully counterweighted crank. Dec 8, 2017 · Do you own a Holden or HSV with a Gen IV (LS2 / L76 / L98 / L77 / LS3 / LSA / LS7 / LS9) V8 engine? Then we need your help! And verify the prefix on your engine number is listed, if you can confirm, contribute or correct please post a comment in the thread. Apr 20, 2009 · I am curious on one thing with this head does it say it is a H or a L comp head. . All L6 cylinder heads can be identified with the engine complete. Some of the new improvements include a revised port design with an increase of over 30% better flow than the factory 12 port cast iron head. What Engine Is In My Holden? Decoding Holden Engine Numbers. The casting number is to be found on the top left (viewed from the rear) side toward the front of the engine. eoi wrvrvw jmgpj dfule ytdh nyjdg iukg xqx gkjroz miodgq