S14 head on M10 block
There is a shop in Western Australia that custom fit S14 head on M10 blocks. The following was extracted from their notes:
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The s14 crank rods and pistons are in as is the cam-chain and guides. The modified m10 front cover has had the tensioner tube chopped off reamed and a 20mm core plug pushed in, then the front crank seal hole machined from (m10)55mm to (s14)60mm and fitted, the m10 block face needs the water holes drilled between the bores to suit the s14 head and gasket.
a small square hole for gravity fed oil return, rear corner of head on the s14 ,has no such thing on the m10 block, so blocking the drain on the s14 cambox in the lower corner and then drilling a hole/path from the cambox to top of head next to drain hole leading down to the valve springs etc, makes a clean direct path for the oil to return to the sump and crankcase breathing in the same position as the m10 block! next the oil breather and separator system on Tii’s run through a tube sticking out in the side of the block casting just above the dipstick but the s14 is in the top of the lower half of the alloy sump after passing through the separator placed under the starter motor. One shock difference is the amount of veins and how large the impeller is on the s14 water pump over the m10′s! However some things are the same as s14 on the m10 and should be no suprise, parts like front timing and rear crank covers to block, chain guides, most water and all oil holes on block face. The m10 front cover had the chain tensioner on it, once removed and a core plug was fitted the front crank seal hole made 5mm larger is the same as factory supplied s14! The standard S14 head gasket then fits as it should, timing chain etc . All m10, s14 crank journals and bearings sizes are the same type and size, those wacky Germans
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Another word, too costly. Which bring me back to my original idea of using Ford or something else which is cheaper.