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Info wanted on 1800 SOHC engine
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Glenn
Joined: Tue May 10, 2011 2:23 am Posts: 2823 Location: Melb.
Car(s): '72 Sport Bellett (imported 180912), M/B AMG A35, i30, had Belletts in past, 2 sed, 3 GT's.
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Peter, all the pistons on ebay seem to be dished type, except this one which is a flat top, so might do the job. But i am unsure if this fits the SOHC engines by the description. Although "series 1 -4" would seem right. "110(1.8 Liter) GMC LUV Engine Piston Set 1972-1975" Brand New! For 1972-1975 1 Thru 4 Series 2 Sizes available STD, 020 Over http://www.ebay.com.au/itm/110718451910?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649#shIdLATER UPDATED:-the pistons shown in the picture: says 3.3871" bore which is 86.03mm. Too big for a 84mm bore. glenn
_________________ '72 PR60 Sport
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Tue Apr 17, 2012 3:48 am |
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gt orphanage
Joined: Fri Mar 20, 2009 8:23 am Posts: 1816
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decompressed just beggs forced induction It's the only fix
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Tue Apr 17, 2012 4:04 am |
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Glenn
Joined: Tue May 10, 2011 2:23 am Posts: 2823 Location: Melb.
Car(s): '72 Sport Bellett (imported 180912), M/B AMG A35, i30, had Belletts in past, 2 sed, 3 GT's.
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yes i thought of that !!
BUT getting on Vic Club reg permit might be a problem !
glenn
_________________ '72 PR60 Sport
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Tue Apr 17, 2012 5:02 am |
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gt 161
Joined: Wed May 19, 2010 10:35 am Posts: 33
Car(s): Gt Bellett, Rover 90, Rover 75 ,327 hk Monaro, 307 ht Ute, Mazda 6 wagon.
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I don't think 84mm will be a problem as the isuzu blocks are pretty thick I now 1800 twin cams go out to 2 litre size ok and the 1800 single cam is the same block so should be ok and just think that extra swept volume will only help in getting the comp up oh and on the point of blowing the engine and club rego I don't think you will have a problem look at all the mg's out there and there on read plates I know as I have dyno tuned a heap of them regards Peter.
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Tue Apr 17, 2012 11:41 am |
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Glenn
Joined: Tue May 10, 2011 2:23 am Posts: 2823 Location: Melb.
Car(s): '72 Sport Bellett (imported 180912), M/B AMG A35, i30, had Belletts in past, 2 sed, 3 GT's.
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86.03 equates to ~1906cc from the 84 x 82 SOHC 1800 engine.
The above pistons are flat top on ebay but no rings with them. Is it feasible to get rings for that size
Is it safe in all cases to punch them this far or is sonic testing first needed.
glenn
_________________ '72 PR60 Sport
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Tue Apr 17, 2012 10:31 pm |
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Glenn
Joined: Tue May 10, 2011 2:23 am Posts: 2823 Location: Melb.
Car(s): '72 Sport Bellett (imported 180912), M/B AMG A35, i30, had Belletts in past, 2 sed, 3 GT's.
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I found these pistons, can anybody comment on them please?
They are supposed to be for the SOHC 1800cc engine, Series 1 - 4 Chevvy LUV in USA.
They are domed on top. >> updated:- Must be my eyes, vendor says they are flat tops.
Not 'shiny' looking either like others on eBay.
Attachments:
photo 1.JPG [ 92.19 KiB | Viewed 14617 times ]
_________________ '72 PR60 Sport
Last edited by Glenn on Wed Apr 18, 2012 4:28 am, edited 2 times in total.
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Wed Apr 18, 2012 12:16 am |
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Glenn
Joined: Tue May 10, 2011 2:23 am Posts: 2823 Location: Melb.
Car(s): '72 Sport Bellett (imported 180912), M/B AMG A35, i30, had Belletts in past, 2 sed, 3 GT's.
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They are 84mm +20 thou'
_________________ '72 PR60 Sport
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Wed Apr 18, 2012 12:18 am |
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Glenn
Joined: Tue May 10, 2011 2:23 am Posts: 2823 Location: Melb.
Car(s): '72 Sport Bellett (imported 180912), M/B AMG A35, i30, had Belletts in past, 2 sed, 3 GT's.
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I now have this info on the pistons, (appears to be +0.5mm or 20thou over)
P405 X .50mm or .020 in Standard bore: 3.3071 or 84.0mm Compression distance: 1.445 Ring pack: 2@2.0 1@4.0 Head type: Flat top Pin diameter: .8664 For 1972-75 engines (1thru 4 series)
can anybody cross ref this to a SOHC engine or Gemini/Rodeo to see if Ok for SOHC 1800 ?
Please.
_________________ '72 PR60 Sport
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Wed Apr 18, 2012 10:21 pm |
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Glenn
Joined: Tue May 10, 2011 2:23 am Posts: 2823 Location: Melb.
Car(s): '72 Sport Bellett (imported 180912), M/B AMG A35, i30, had Belletts in past, 2 sed, 3 GT's.
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I took a plunge here.
Bought Luv series '72 - 75, flat top piston set. +30thou. OK, not 'right' pistons, but better than dished ones.
Rings and full gasket set. Hopefully right one see below, appreciate any feedback !
Just need a car to go with them !
glenn
Attachments:
Gasket set LUV.jpg [ 40.1 KiB | Viewed 14582 times ]
Piston set 190412.jpg [ 18.32 KiB | Viewed 14582 times ]
_________________ '72 PR60 Sport
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Thu Apr 19, 2012 10:47 pm |
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Pombellett
Joined: Thu Nov 04, 2010 9:30 am Posts: 487
Car(s): Alfa 33, 1935 Riley Special
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Hi Glen, as promised some pics of pistons that Dutch Dick sent me, when I was looking around for them myself. Hepolite Attachment:
Hepolite.jpg [ 177.53 KiB | Viewed 14567 times ]
Repco Attachment:
repco.jpg [ 322.68 KiB | Viewed 14567 times ]
Toto Attachment:
Toto.jpg [ 258.9 KiB | Viewed 14567 times ]
These would make nice Christmas cards as well
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Fri Apr 20, 2012 10:44 am |
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Glenn
Joined: Tue May 10, 2011 2:23 am Posts: 2823 Location: Melb.
Car(s): '72 Sport Bellett (imported 180912), M/B AMG A35, i30, had Belletts in past, 2 sed, 3 GT's.
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Mark, are they 84mm pistons? I guess not if for Rollie.
glenn
_________________ '72 PR60 Sport
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Fri Apr 20, 2012 11:36 pm |
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Dick
Joined: Sun Mar 01, 2009 7:18 pm Posts: 95 Location: Netherlands / Holland
Car(s): Isuzu Bellett 1600 Sport SOHC, Honda City 2006, Honda CRV 2010, Vespa P150
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Hi Glenn, The pic's Pombellett shows us are pistons for a 1600 (82 mm pistons) indeed, I also do have the 84 mm pistons. They look just the same with he little step on top of the piston too. This offcourse will give a better compr ratio. The original sohc pistons had the cam on the piston not only for higher compression, but also for the flow in the chamber.
I'd say; now it is getting time to go out and buy an 1800 sohc car. With a bit of luck it has a good engine with no work at all !
groejes Dick
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Sun Apr 22, 2012 7:46 pm |
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Glenn
Joined: Tue May 10, 2011 2:23 am Posts: 2823 Location: Melb.
Car(s): '72 Sport Bellett (imported 180912), M/B AMG A35, i30, had Belletts in past, 2 sed, 3 GT's.
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Thanks for info, Dick. I was going to buy a car that had an engine in 'down' condition hence the parts but its now been withdrawn from sale. Of course, i would prefer a car with a good engine though, but need to find one.
glenn
_________________ '72 PR60 Sport
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Sun Apr 22, 2012 10:04 pm |
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