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Author Topic: 280 Late block early head....  (Read 2221 times)

erickmarciano

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280 Late block early head....
« on: April 07, 2017, 03:58:28 »
Hi guys . I am trying to help a friend remotely . He is telling me he has a late 280sl block with a early head . Car does runs lean no mater what we do
Would the car run with this nissmatch?
Thanks
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1994 E500 W124
1971 280sl
1989 Porsche 930 coupe
1988 e30 m3
2001 ducati mh900
2006 ps1000
1962 Vespa GS160

Benz Dr.

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Re: 280 Late block early head....
« Reply #1 on: April 07, 2017, 05:30:39 »
No. I ended up with the wrong head gasket set once on an early engine ( late head set ) and it burned through the gasket filling the crank case full of coolant. I can't imagine you would want to try it and find out the hard way.  Just sayin'.
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1966 230SL 5 speed, LSD, header pipes, 300SE distributor, ported, polished and balanced, AKA  ''The Red Rocket ''
Dan Caron's SL Barn

1970  3.5 Coupe
1961  190SL
1985   300CD  Turbo Coupe
1981  300SD
2013  GMC  Sierra
1965  230SL
1967 250SL
1970 280SL
1988 560SEC

ja17

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Re: 280 Late block early head....
« Reply #2 on: April 07, 2017, 05:54:07 »
The early head will not work on the late block and vice versa. A bad barometric compensator can cause a permanent "lean" condition. Low fuel pressure can also cause lean running.
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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
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