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Engine Tech Technical discussion related to all relevant engines such as KA, SR, RB, CA, 2JZ , L24/26/28, VG, VQ, and LSx series.


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Old 06-08-2018, 11:19 PM   #1
unicoder
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Question about overbore engine block

So I sent my 250k mile block to the machine shop. They are claiming I need a 0.030" overbore, but all the pistons im finding are 89/89.5/90mm

is my only option 90 since 0.030" ~ .75mm and I don't see 89.75mm pistons anywhere?

I am finding it impossible to find .040 over stock replacement pistons, the only 90mm im finding are the forged ones.
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Old 06-09-2018, 08:13 AM   #2
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kyral is just really nicekyral is just really nicekyral is just really nicekyral is just really nicekyral is just really nicekyral is just really nicekyral is just really nicekyral is just really nicekyral is just really nice
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I only saw 40 overs in cheap Chinese brands
the 30's I found by npr but all the kits were out of stock
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Old 06-09-2018, 08:15 AM   #3
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Yep, scoop some .040 wisecos and call it a day.
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