kb 237 piston .30 over bore help
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yannick47
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thank for the reply's goes everything worked out fine at the end.....its a learning thinf for me and the mech
(thank to hideous Toyota and Nissan)anyways moving along any advice on piston gaps 1st ring 2nd ring ??just for normal everyday drive street use .and any adive on gaskets for these heads and ca i just bolt hem right on??or d i need to check something?
(thank to hideous Toyota and Nissan)anyways moving along any advice on piston gaps 1st ring 2nd ring ??just for normal everyday drive street use .and any adive on gaskets for these heads and ca i just bolt hem right on??or d i need to check something?
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Fel-Pro 1009 head gaskets which are a composition type gasket. Never use a steel shim with aluminum heads.
Timing...give it what it likes but a good place to start is 10* initial, 35 total. High compression engines usually do not like a lot....
Pistons... there should be an notch or an arrow on the top of the piston that points for the front. I'm not real familiar with those pistons so I don't know how they are marked. Did you buy them new from KB and have paperwork on them? All the info should be in the paperwork or you might be able to go to the KB site for it. Also, the correct ring end gaps are very important on these pistons so make sure your mechanic knows about that.
Timing...give it what it likes but a good place to start is 10* initial, 35 total. High compression engines usually do not like a lot....
Pistons... there should be an notch or an arrow on the top of the piston that points for the front. I'm not real familiar with those pistons so I don't know how they are marked. Did you buy them new from KB and have paperwork on them? All the info should be in the paperwork or you might be able to go to the KB site for it. Also, the correct ring end gaps are very important on these pistons so make sure your mechanic knows about that.
yannick47
Well-Known Member
http://www.summitracing.com/parts/FEL-1009/
are these the ones?and yah i bough them new and have the instruction papers..i think i got it right just wanted t confirm on that...
an ather advice in rebuilding this engine?ive read tht im better of with the stock fan and shroud?i bought this car with a dual electric fan setup ?/is this going to be a problem cause in summer its gets bloody hot here in the desert
its got a 3 core radiator on too....
Meep-Meep
дворянин
In the piston instructions you will see a formula on how to calculate ring gaps. http://www.kb-silvolite.com/article.php?action=read&A_id=32
Your number sounds about right if I remember correctly.
If you have a clutch fan or a fixed seven blade then you may be OK. You can always add an electric pusher in the front for low air flow conditions. Just don't add a 4th core to your radiator as it will do little good. Do you have a 26" radiator? If not you might consider it. Also your water pump should have the larger impeller if you use the large fan pulley.
Your number sounds about right if I remember correctly.
If you have a clutch fan or a fixed seven blade then you may be OK. You can always add an electric pusher in the front for low air flow conditions. Just don't add a 4th core to your radiator as it will do little good. Do you have a 26" radiator? If not you might consider it. Also your water pump should have the larger impeller if you use the large fan pulley.
yannick47
Well-Known Member
i went wit 0.28"on he first ring and .020 on the second...hope it works alright and i don't have the clutch fan or the big stock one..yes and do have a 26"radiator but it came with electric fans?thin i need o purchase the stock fan??i should just run it with the fans the car came with and see?
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