Kinser Posted September 26, 2008 Report Posted September 26, 2008 Guys, up till now i was under the impression that me little 4K had flat top pistons, so i wanted to get my hands on some dishies to lower the CR.. goin through some old threads the other day, i came pass a post explaining how to tell the diffrence between the two type of heads, via a photo, there was a shot of a 4K looking at the spark plug side, and on the two outer plugs, there was a little metal stip on the bottmem side of each hole. looking at my head today, i saw that my head hat there little stips on the outer spark plug holes, straight away took a look at my friends 4K, and he did not have them. which leads me to suspect that i have dished pistons, and he has flat tops. is this correct? so the only way i can lower the CR now is to bolt on a head from a flat top 4k..am i right so far? i got allot goin thrugh my head right now, so I'm sorry for the long post. Thanks, David Quote
Taz_Rx Posted September 26, 2008 Report Posted September 26, 2008 Hi David, Yeah You're correct, the tabs under 1 & 4 indicate dishies on either a 5k or 4ku. So you can use either a normal 4kc or maybe a 3k big port head if you can find one to drop your CR. Quote
Kinser Posted September 27, 2008 Author Report Posted September 27, 2008 Hi David,Yeah You're correct, the tabs under 1 & 4 indicate dishies on either a 5k or 4ku. So you can use either a normal 4kc or maybe a 3k big port head if you can find one to drop your CR. Hey, off topic. i dunno if u heard, but matt went to the yard to get my 7k EFI setup, and the bloke there sold the last one.. =\ so I'm stuck, might have to make fit a manifold from another car.. (not nesseserly toyota) back to topic, i know that most if not all charmants here are flat pistons, seen three already.. so I'm gonna look for a whole engine, and use the head. David Quote
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