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someone help! l16


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Funny, though, that 1973 L16s came with an open-chamber A87 stock and are listed as having an 8.5:1 CR...

 

 

Something doesn't add up.   I'm not going to disassemble my Mom's '73 again just to measure cc's for the (A87 Open) head or (dished factory stock) L16 pistons, but after a .030 mill on the head it pinged something fierce on anything under 94 octane.  Was fine on old-school Regular leaded gas, but 87 octane Unleaded was a no-go.

 

Oh, and the crate L16 I have came with a W53 head, FWIW.  However it likely has flattops.

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Funny, though, that 1973 L16s came with an open-chamber A87 stock and are listed as having an 8.5:1 CR...

 

 

Something doesn't add up.   I'm not going to disassemble my Mom's '73 again just to measure cc's for the (A87 Open) head or (dished factory stock) L16 pistons, but after a .030 mill on the head it pinged something fierce on anything under 94 octane.  Was fine on old-school Regular leaded gas, but 87 octane Unleaded was a no-go.

 

Oh, and the crate L16 I have came with a W53 head, FWIW.  However it likely has flattops.

 

 

It would be closer but no cigar.

 

210............... 8.58

Closed chamber.... 8.21

Open chamber...... 6.72

.

This assumes stock 7.01cc L16 pistons....

 

210........ 38.5cc

closed.... 41cc

open...... 45.2cc

 

If flattops were used.....

 

210................. 9.75

closed............. 9.2

open............... 8.62

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