TodFitch Posted May 22, 2019 Report Share Posted May 22, 2019 Just noticed this thread on the AACA web site: https://forums.aaca.org/topic/327261-high-compression-head-for-28-std-six/ The car owner wanted a higher compression head but wanted to be able to return the car to totally stock in the future. So that ruled out milling the original head. If I read the follow on correctly, he did the milling on an old non-CNC machine so I guess he is pretty talented. 1 Quote Link to comment Share on other sites More sharing options...
Frank Elder Posted May 22, 2019 Report Share Posted May 22, 2019 Wow........ Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted May 22, 2019 Report Share Posted May 22, 2019 Excellent case of failure not being an option. Quote Link to comment Share on other sites More sharing options...
P15-D24 Posted May 22, 2019 Report Share Posted May 22, 2019 Wow and another wow! Quote Link to comment Share on other sites More sharing options...
greg g Posted May 22, 2019 Report Share Posted May 22, 2019 As for the triangular cuts made into the combustion chamber look up an engineer named Samander Singh. His theory of groved combustion Chambers was and likely still is a common modification in single cylinder 4 stroke flatheads use in mic rod and go cart racing. Can't tell from the installed pic but I am thinking this is a rwo piece construction necessitating another gasket for the cooling passage npassage piece to connect to the combustion piece. Quote Link to comment Share on other sites More sharing options...
greg g Posted May 22, 2019 Report Share Posted May 22, 2019 This is a test, please leave it up for a couple hours. PEANUT BUTTER. Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted May 26, 2019 Report Share Posted May 26, 2019 On 5/22/2019 at 6:26 PM, greg g said: This is a test, please leave it up for a couple hours. PEANUT BUTTER the peanut butter is now gone, lunch is over, everyone back to work...! Quote Link to comment Share on other sites More sharing options...
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