Zollner pistons??
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Zollner pistons??
As by now you probably know I've been trying to figure out how to set up my engine and you all have been VERY helpful thanks a bunch but since we're all just staring at a screen here's another time passing question maybe someone knows the answer to. The "Quench" equation I've picked up from previous threads has led me to this new idea 390 crank which I just ordered tonight off of Ebay $100 already turned (thought that was a fair price!) 360 Rods assuming the length of 6.54" which I already have and I found a set of 390 Zollner pistons with a compression distance of 1.725" they also claim 9.0:1 comp ratio. So doing the Quinch equation with these gives me 1.89+6.54+1.725=10.155 and that seems pretty close to 10.17 to me. Now what the hell is a "Zollner" piston never heard of em? But the specs sound good to me from what you guys have said that is if I have the above equations correct? The 360 rod thing I kinda got on my own but it seems like it'll work? Plus using the longer rod I should think that should also boost the comp ratio a bit. What do ya think?
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Joined: Jul 2003
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From: iowa
Zollner is or was an aftermarket company, the pistons are probaly cast. What cam are you using?, might want to check out dynamic compression. 390 rods are way stronger, but it depends on what you are doing with this motor.
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It is just a truck motor for my 71 4x4 so it will be used for everyday driving nothin extreme and I was liioking at the comp 33-234-4 Xtreme or 33-206-3 dual energy! The Zollner's have a 1.040" piston pin diameter? Which seems a little strange? I haven't measured mine I wil here in a min.
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