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#1
07-09-2008, 03:38 PM
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130 Engine Head Swap
Can the head from a carberated engine be put onto a injected engine. The model year is the same. Is the only modification needed is to bore and thread the injection holes.
__________________
Britton McIntyre 68 280 SE coupe 'Hairball' 70 280 SL 71 280 SEL - RIP May 2010 
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#2
07-09-2008, 04:50 PM
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Just curious, why wouldja ever want to go from injection to carbs? Are you putting it into a carb'ed car or something? Wish I could help ya with the answer, I'm green when it comes to MFI.
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___ /<>/>/> 1967 230S automatic Boston, MA
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#3
07-09-2008, 07:21 PM
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Just so that everyone understands. My injection head is damaged and I have a non-injection head. Can I use the non-injection head on my current engine?
__________________
Britton McIntyre 68 280 SE coupe 'Hairball' 70 280 SL 71 280 SEL - RIP May 2010
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#4
07-09-2008, 09:42 PM
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Hello,
The heads from the carbureted engine and the heads from fuel injected engines are not inter-changable. They are close but the chain gallery on the fuel injected engine is wider. The two engine blocks are different also. Be careful, there are two types of M130 injected heads for these cars which are not inter-chagable also. Take a look at this chart. Your head casting number is cast right onto the cylinder head by the spark plugs. The 280SL engines are basically the same as the 280SE, SEL engines. Last edited by ja17; 07-09-2008 at 09:48 PM.
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#5
07-14-2008, 02:54 AM
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ja17 is correct
Besides, the exhaust manifold and header pipes are different, too.
__________________
1970 280S M130 engine- good runner 1971 250 M130 engine- #2 rod bearing, gone 1971 280SE (blown engine,parts car) 1977 German 280S W116-only 33 years old
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#6
07-17-2008, 08:45 PM
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Yeah but given that manifolds aint identical how much different are the ports and dowels? Comparing manifold gaskets will tell ye that. And widening of chain gallery oughta be no prob for any machinist since alloy heads are soft as butter. Heck, ye could probly rasp and file it yerself by hand using no power tools. Meanwhile if ye want the scoop on oil and coolant galleries bein exact just compare head gaskets for each to see if they dont match. Yep, comparing the gasket kit parts## oughta tell ye pretty much all ye need to know.
(edit:= Though ye can widen the chain gallery, there's question of chain guides involved Fer sure with different locations for their holding pins. And specs for those pins better be exact size opening and location. Strikes me the whole ball of wax revolves around yer machinists' skills. Last edited by 300SDog; 07-18-2008 at 11:50 AM.
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#7
07-18-2008, 04:57 PM
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Having known JA17 for for more than 3 decades....
...my money is on his opinion.... If Joe says they are not interchangable, that's good enough for me.
Joe has worked on more M130 engines than most of us have even seen in our lifetime.... Jim
__________________
14 E250 BlueTEC black. 45k miles 95 E320 Cabriolet Emerald green 66k miles 94 E320 Cabriolet Emerald green 152k miles 85 300TD 4 spd man, euro bumpers and lights, 15" Pentas dark blue 274k miles
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