Hi All,
For those who chimed in on my DCR thread - thanks! I settled on the 270/270 110 cam from Schneider and talking to Jerry about my build. In the cam specs (custom grind), he stayed the valve lift would be .485” with my YT 1.65 roller rockers. I recall a post by X (I think) that anything over .490” would have piston to valve clearance issues. Do I need to re-evaluate my cam choice? I haven’t purchased it yet. My motor specs below, based on these am I running a high risk of piston/valve interference? Note that this is all planned machine work - haven’t had it done yet so I can course correct if recommended.
1968 200ci block - bore TBD (20 or 30 over)
Planned zero deck
Flat top pistons (I haven’t found any with reliefs)
Planned 10:1 static compression ratio
Aluminum head/intake with 1.84” intake valves
53cc combustion chamber size
Victor head gasket (.044” thickness compressed)
I realize my questions are all theoretical and must be measured which I plan to do upon assembly. However, I don’t want to be in a situation where I’m dangerously close and it’s too late to leave a little meat on the deck, change to a felpro gasket, etc to give me more room.
Thoughts? Appreciate any advice.
Cheers,
Matthew
For those who chimed in on my DCR thread - thanks! I settled on the 270/270 110 cam from Schneider and talking to Jerry about my build. In the cam specs (custom grind), he stayed the valve lift would be .485” with my YT 1.65 roller rockers. I recall a post by X (I think) that anything over .490” would have piston to valve clearance issues. Do I need to re-evaluate my cam choice? I haven’t purchased it yet. My motor specs below, based on these am I running a high risk of piston/valve interference? Note that this is all planned machine work - haven’t had it done yet so I can course correct if recommended.
1968 200ci block - bore TBD (20 or 30 over)
Planned zero deck
Flat top pistons (I haven’t found any with reliefs)
Planned 10:1 static compression ratio
Aluminum head/intake with 1.84” intake valves
53cc combustion chamber size
Victor head gasket (.044” thickness compressed)
I realize my questions are all theoretical and must be measured which I plan to do upon assembly. However, I don’t want to be in a situation where I’m dangerously close and it’s too late to leave a little meat on the deck, change to a felpro gasket, etc to give me more room.
Thoughts? Appreciate any advice.
Cheers,
Matthew