Originally Posted by
tothemark
I didnt fancy sitting around so I have done a measurement on the basis that the red block with the engine vin code is a good template for measuring the original deck height of a standard block.
Measuring from both sides of the bearing carrier to the top of the block i have a difference, in that the race block is 1mm lower, i think its pretty safe to assume thats what its been decked by in order to make some further calcs at this stage.
1300 head 35/29 inlet outlet red block standard
Gasket 6.3mm, chamber 13cc, Piston crown 10.4, swept volume of 1200cc std =348.90/29.7 CR 11.747
Gasket 6.3mm, chamber 13cc, Piston crown 10.92 swept volume of 1200+.5 =366.35/30.22 CR 12.122
C14SE head 38/33 inlet outlet red block standard
Gasket 6.3mm, chamber 16cc, Piston crown 10.4, swept volume of 1200cc std =348.90/32.7 CR 10.66
Gasket 6.3mm, chamber 16cc, Piston crown 10.92 swept volume of 1200+.5 =366.35/33.22 CR 11.02
1300 head 35/29 inlet outlet race block
Gasket 6.3mm, chamber 13cc, Piston crown 10.4, swept volume of 1200cc std =348.90/28.7 CR 12.18 allowing for 1mm decking
Gasket 6.3mm, chamber 13cc, Piston crown 10.92 swept volume of 1200+.5 =366.35/29.22 CR 12.53 allowing for 1mm decking
C14SE head 38/33 inlet outlet race block
Gasket 6.3mm, chamber 16cc, Piston crown 10.4, swept volume of 1200cc std =348.90/31.7 CR 11.00 allowing for 1mm decking
Gasket 6.3mm, chamber 16cc, Piston crown 10.92 swept volume of 1200+.5 =366.35/32.22 CR 11.37 allowing for 1mm decking
This has been a good exercise to determine a starting point as to what fits with what, bearing in mind i had no history of the parts i have.
Looks like the the highlighted options are the two configurations i can build, not too happy with 11.74, but its a really nicely worked head, so i dont want to discard it.
Are there any thicker head gaskets (thicker than 6.3mm) that i can use, i presume the Payen is 6.3mm, to bring the compression down on my 1300 head configuration ?
Many thanks
TTM