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HELP! Big cylinder bolt spacing measurements

Duke Thieroff

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Anyone have bolt spacing on 084 cylinder is it smaller than 880? Has anyone tried one of the dukes 880 cylinders if so how are they holding up? @Duke Thieroff
I'll try to check tomorrow, if I remember, on the bolt spacing. Tuesdays are busy for us.

The 084 cylinders are really nice, the 880s "aren't bad" but there's only limited factories to buy that specific model from.
 

Shane¹

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Since I am trying to do a hybrid option I think whatever bolt spacing is better will probably be what I start with
 

Shane¹

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I'll try to check tomorrow, if I remember, on the bolt spacing. Tuesdays are busy for us.

The 084 cylinders are really nice, the 880s "aren't bad" but there's only limited factories to buy that specific model from.
Did you happen to have a chance to check spacing on the 084 cylinder yesterday?
 

Ketchup

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3120xp:
64mm Intake to Exhaust
62mm FW to PTO
83.7mm Band to Base

There does appear to be a good amount of room to slot towards the bore.
 
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Ketchup

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Since I measured them:

395BB (58mm)
56mm Int/Ex
54mm FW/PTO
82.2mm Bore Height
68.2mm Max Base Width
38mm Original Stroke
13mm Wrist Pin

Sachs 143 (55mm)
54mm Int/Ex
52mm F/P
71.7 Bore Height
76.1 MBW
40mm OS
12mm WP

7900BB (54mm)
57mm I/E
52mm F/P
70.3mm BH
73.3mm MBW
37mm OS
12mm WP

660BB (56mm)
54mm I/E
50mm F/P
81mm BH
63.5mm MBW
40mm OS
12mm WP

500i (54mm)
74mm I/E
54mm F/P
71.3mm BH
68.2mm MBW
34.5 OS
12mm WP

390BB (57mm)
64mm I/E
54mm across exhaust
50mm across intake
67mm BH
80mm MBW
37mm OS
13mm WP

We need a spread sheet. And specs for 288, 056Mag2, 9000, 930S etc.

For those excited about 500i, it’s front fed, the piston skirts are very short and the intake is weird.
 
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