fbt551 Posted February 2, 2015 Report Share Posted February 2, 2015 Im putting together a 370 built for alky the piston seems to be .019-.020 below deck height at tdc and the head has about the same at the edge of the squish band I am using sodder about .070 thick and its barely touching when I rotate I've checked squish before but its not making sense i was also using a .020 base gasket but it wasn't even touching at .070 so I took it off and that's when I got it to touch the sodder any ideas? Quote Link to comment Share on other sites More sharing options...
n2otoofast4u Posted February 2, 2015 Report Share Posted February 2, 2015 Give the rest of the specs. Pistons Rods Stroke Base Gasket wanting to use Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted February 3, 2015 Report Share Posted February 3, 2015 Take your measurements send head to mull engineering,have him cut it for alky, l like stock cyl between .045-.050 squish Quote Link to comment Share on other sites More sharing options...
fbt551 Posted February 3, 2015 Author Report Share Posted February 3, 2015 Blaster pistons...370 is stock stroke 115 rod...was wanting to use a .020 gasket but no gasket piston already sits .020 below deck.. With gasket it will sit .040 below and my squish will be like .090 Quote Link to comment Share on other sites More sharing options...
fbt551 Posted February 3, 2015 Author Report Share Posted February 3, 2015 Head has already been cut I was just wondering if piston sits a little lower on 370 motors they use blaster piston and 115 rods Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted February 3, 2015 Report Share Posted February 3, 2015 Last one I put together was with 70 mm wsm pistons it sat .005 below deck with .020 base , a lot of the old 370 shit I have seen has been decked some on the bottom side cylinders Quote Link to comment Share on other sites More sharing options...
fbt551 Posted February 10, 2015 Author Report Share Posted February 10, 2015 Last one I put together was with 70 mm wsm pistons it sat .005 below deck with .020 base , a lot of the old 370 shit I have seen has been decked some on the bottom side cylindersSo they shave some off of the base? I would get is to sit at 0 deck height and just the the head cit for alky between .040 and .050 Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted February 10, 2015 Report Share Posted February 10, 2015 Good nees for you. Wiseco blaster pistons and a longrod stock stroke end up.031 or .032 shorter than they are supposed to. You need the cyls down basically .032. I have fixed two of that combo. One was a cub, one a stocker. Don't try to fix it with the head. It needs out off the bottom of the cyls too correct port timing and blowdown. I like .036 to.040 squish on an alky 350 depending on pipes. Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted February 10, 2015 Report Share Posted February 10, 2015 Three wsm pistons mentioned here that were used have a .032 or .030 higher pin to crown and would corrctly fix your problem as well. Out you ran it like this art all you know that it has no lowend at all. Quote Link to comment Share on other sites More sharing options...
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