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Forum namePerformance/Engine
Topic subjectto those with 20 over bore please read...info spec question
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=63105
63105, to those with 20 over bore please read...info spec question
Posted by hawaiidiverx, Nov-14-03 01:23 PM
i was just looking on the info and specs page and found this


CYLINDER BLOCK AND BEDPLATE
The thin-well cast in iron block is only 212 mm (8.35 in.) high to clear the low hood. The block ends at the centerline of the crankshaft. Bore spacing of 96 mm (3.78 in.) allows room for coolant to flow around all cylinders. The top deck is open to reduce weight. For light weight, :shrug cylinder walls do not allow for a larger bore :shrug . A bedplate beneath the block supports the crankshaft and provides needed structural stiffness for durability at high rpm's and quiet operation. A perimeter wall and three transverse webs make up the bedplate. Main bearing caps are integral with the transverse webs. The bedplate attaches to the base of the block via 20 bolts -- 10 along the outer walls and 10 straddling the main bearings. The bedplate also provides a flat sealing surface for the oil pan.

i'm just about to order a set of cp pistons from FTY and i was gonna go 20 over...is there any truth to this????
63106, RE: to those with 20 over bore please read...info spec question
Posted by DR1665, Nov-14-03 01:38 PM
When people talk about a "20 overbore," they mean .020" That's 2 hundreths of an inch. Maybe a tad more than a human hair. It's no problem. You just can't go boring the thing like a muscle car to increase displacement. (Or believe me I would!) :P

Trust us - you WANT to have this done.
63107, RE: to those with 20 over bore please read...info spec question
Posted by hawaiidiverx, Nov-14-03 01:41 PM
thats what i thought but just wanted to be sure...thanx for the input...anybody have horror stories about the CP 8.8:1's from FTY?????