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GeneBob · 05-06-2021, 11:37 PM

I just replaced a Snyder 6:1 with a Lion III. The Snyder head is a good solid performer but the Lion III seems to provide a wider, flatter torque curve (by the seat of the pants measure). To be fair, I also changed to the FSI ignition at the time because of the spark plug locations. I honestly think the Lion III improved performance with better flow.
The Lion III is made to be about 6.5± compression but is thicker than the stock head designs so it can be machined down if higher compression is desired.
Also, I have a Stipe cam, a Weber carb and the cast iron header from Snyder's on a fresh rebuild. This is a pretty balanced combination although it wants a lot of timing advance at lower RPM. I made a plate to limit total spark advance to about 31° at the crank but it wants at least 10° off idle or it will hesitate.
Just some more information to further confuse...

05-06-2021, 11:37 PM	#63
GeneBob Senior Member Join Date: May 2017 Location: Denver Area Posts: 433	Re: Anyone run a Lion Head I just replaced a Snyder 6:1 with a Lion III. The Snyder head is a good solid performer but the Lion III seems to provide a wider, flatter torque curve (by the seat of the pants measure). To be fair, I also changed to the FSI ignition at the time because of the spark plug locations. I honestly think the Lion III improved performance with better flow. The Lion III is made to be about 6.5± compression but is thicker than the stock head designs so it can be machined down if higher compression is desired. Also, I have a Stipe cam, a Weber carb and the cast iron header from Snyder's on a fresh rebuild. This is a pretty balanced combination although it wants a lot of timing advance at lower RPM. I made a plate to limit total spark advance to about 31° at the crank but it wants at least 10° off idle or it will hesitate. Just some more information to further confuse...