This is starting to sound like fun.
Does the block need clearancing for a counterweighted crank ?
173 extra cubes?
Started by
gad05
, Jan 27 2014 01:20 PM
34 replies to this topic
#27
_STRAIGHTLINEMICK_
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Posted 29 January 2014 - 09:48 PM
Nope , just grind the mains down and drop it in .
#28
_Lazarus_
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Posted 30 January 2014 - 10:38 PM
Volvo pistons (4cyl B20 and 6cyl B30) are very close to a 173 as well. Flat top, 3.5" bore, 0.866" pin height and 1.81" comp height. So piston top is only 30 thou taller than a 173, probably would make them sit right at deck height!
Don't know what size the pins are by any chance do you please ?
#29
yel327
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Posted 31 January 2014 - 07:16 AM
0.866" pin, I typed height after it by mistake. Same pin size as the Holden piston. They are flat tops. ACL part number was 6MKRY2603 (or 4MKRY2603 for the 4cyl but same piston just a different amount in the set). Rings are 0.078, 0.078, 0.187, same as a 173.
Plenty of pistons and rings on Ebay:
http://www.ebay.com....a#ht_1222wt_916
http://www.ebay.com....#ht_1072wt_1153
Just check the specs first yourself:
http://www.mitsubish...oducts_pp99.pdf
Edited by yel327, 31 January 2014 - 07:23 AM.
#30
stevemc32
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Posted 07 February 2014 - 09:31 AM
I like the volvo pistons idea to get you up to about 190 cubes.
If you were really serious about getting the full 202 and worried about boring out the standard 173 block to 3.625 for the 202 pistons could it be re-sleeved with 3.625 sleeves?
#31
yel327
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Posted 07 February 2014 - 11:26 AM
The Volvo pistons are the same bore as a 173 so biggest would be 179 with +0.060"
#32
_Bomber Watson_
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Posted 07 February 2014 - 01:25 PM
Were talkig about a 202 crank remember.
#33
yel327
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Posted 07 February 2014 - 03:41 PM
Yeah I know, but the Volvo pistons were all but 173 flat top replacements, or 179 with STD bore at +0.060". The 2.0L Ford pistons are the ones that go close for a 173 with a 202 crank.
Edited by yel327, 07 February 2014 - 03:43 PM.
#34
_Lazarus_
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Posted 07 February 2014 - 07:33 PM
Yes I suddenly remembered that today.
Reading Johnno's thread but he doesn't recommend boring the little ends of Starfire rods though, so might need another type of piston (or rod).
5.71" Olds Quad4 rod ? - (from Johnno's thread, Piston section).
.
Edited by Lazarus, 07 February 2014 - 07:44 PM.
#35
_Lazarus_
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Posted 07 February 2014 - 08:24 PM
Sorry scrap that idea.
An aftermarket Starfire replacement ?
Anyone got a conrod Bible ?
.
Edited by Lazarus, 07 February 2014 - 08:25 PM.
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