Just finished putting together the head for my Lancer. I am using the 75-77 head, 3698447, and it must weigh a ton! Next time I build one of these heads I am going to cut the cast iron out from the push rod side and see how much I can save.

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Hyper_pak

I think those heads are about 10 lbs heavier than the earlier heads. I would be curious to see how much you could lighten the head, but I don't think it would be near 10 lbs.
I am curious, what is the lightest factory slant head and what is the lightest iron head anyone has built?

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-MattMan
LEANED & MEAN

LOL... yeah compared to the 1974 and earlier drool tube head or the 1981-1987 hydro motor head, it's a monster... but not as heavy as the non-exhaust air port injection head that has the lack of air ports and passages...

It will take a while to carve out that section, I've run a burr in there to help with oiling and relieve the pushrod holes a bit when running 3/8" pushrods...there's a lot of meat.

I don't think I've ever figured out what's worse in weight and lower back soreness... laying an early to mid-60's forged crank or a 1975-1980 head....

I am getting ready to send a 220635-2 head off my 1962 to the machine shop for work. Bare and clean
66/67lbs. When I get it together again I will weight it to get a total.

The in line 6 head of a 60's to 80's Jag, now there is a heavy beast.

I will weigh it tomorrow, I am guessing 85 with valves.
It will take a while to get that much cast iron off for sure.
I wonder if this head would be good for a turbo and for gasket sealing?

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Hyper_pak

Nice. I was thinking I am coming old and weak. 35 years ago it was easy to install mid-60's head alone. Now with small plug head I need a crane or assistant. But it was only because they have add material for late heads.

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1966 Dart. 170 cu.in. 200 rwhp.

Just got my head put back together after the machine work. Complete from plugs to stat housing. 74/75 lbs.

DI: That's the one riding atop my engine, yup, heavy, heavy, heavy.

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67' Dart GT Convertible; the old Chrysler Corp.
82' LeBaron Convertible; the new Chrysler Corp
07' 300 C AWD; Now by Fiat, the old new Chrysler LLC

Put it on the scale, 80.8 with valves and springs. After .100 cut. No t-stat or rockers. Dang.

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Hyper_pak

Must be a record! Lots of metal to hog out to make flow... Mike J said he liked those late 70s heads best for that reason - more material to remove.

Lou

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Home of Slant6-powered fun machines since 1988

Yeah, it's not a weight saver, and the pushrod holes are a bit small... but the "Fatpak" head I hogged the crap out of to port match that intake...
I hadn't hit water and i know a drool tube head wouldn't take that kind of abuse....