Author Topic: late vs early cylinder head???  (Read 3915 times)

erickmarciano

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late vs early cylinder head???
« on: January 24, 2009, 16:14:49 »
hi got a very late 280sl would this head fit?
thanks
Erick
1994 E500 W124
1971 280sl
1989 Porsche 930 coupe
1988 e30 m3
2001 ducati mh900
2006 ps1000
1962 Vespa GS160

Naj ✝︎

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Re: late vs early cylinder head???
« Reply #1 on: January 24, 2009, 20:38:05 »
I think the combustion chambers are the late shape.

Check the casting numbers on both heads:

http://www.sl113.org/forums/uploaded/ja17/200622265426_Cyl%20head%20chart%20Joe%20A%204-04.JPG

naj
68 280SL

ja17

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Re: late vs early cylinder head???
« Reply #2 on: January 25, 2009, 01:43:53 »
Yes, the head pictured is the later head (oval shaped combustion chambers).  Compare the casting numbers to those on the chart. Those heads using the same head gasket are interchangeable.  Do not inter mix the early (square combustion chamber head) and the later (oval combustion chamber head).   

Also measure the thickness of the head in the picture. It looks like it has already been cut at least once.  The minimum thickness is 84mm.
« Last Edit: January 25, 2009, 01:46:04 by ja17 »
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback