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#1
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mercruiser used molded hoses for the manifolds that had big ends where they hooked up to the housing( only bigger at the end), the original one looks like it uses smaller hoses(only on the end) than the one you are looking at
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#2
09-11-2008, 04:49 PM
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got the part today it looks new. the hose fittings are the same size and the right number of outlets. it has a 160 thermostat the old was a 180 the 160 should be fine on a carb motor right? i know on my vette and tahoes the cooler the better was on my old camaros and chevelles too.
__________________
 1978 V20 Cuddy w/ 225 Johnson. And Several other boat's
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#3
09-11-2008, 06:52 PM
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143 is for old school carb engines, 160 is for the modern carb engines and EFI's, and 180 is for closed cooling. The 160 is the one to go with for better idle quality and performance. I bet that 180 T-stat sure made alot of steam on a cool day with it running.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD  AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664 
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#4
09-11-2008, 07:20 PM
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Ferm beat me too it, I personally never ran the 180s in a closed system(160 on 1/2 cooled, 143 on completely ccoled), I always used the 143 on carb motors, 160 on EFI( you can do more damage running an EFI cold than hot)
Glad the hose were the right size, it can get expensive replacing molded hoses
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