48 Pan Hot-Rod motor build ...

Took in this motor to freshen up ... Already has a 4-3/4" stroker in it ...

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dragstews
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92 RS Buell
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48 Pan Hot-Rod motor build ...

#1

Post by dragstews » Sat Jul 07, 2018 11:14 pm

Image



dragstews
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Re: 48 Pan Hot-Rod motor build ...

#2

Post by dragstews » Sat Jul 07, 2018 11:18 pm

It's 88 inches at the moment ...
4-3/4" stroke and .040 over on the FL bore of 3-7/15"

Thinking about going to 3-13/16" bore, that will get the cubes up to around 109" with the stroke that it has now ...

kitabel
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Re: 48 Pan Hot-Rod motor build ...

#3

Post by kitabel » Sun Jul 08, 2018 4:48 am

The heads are the restriction, not the displacement.

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Re: 48 Pan Hot-Rod motor build ...

#4

Post by Edaddy » Sun Jul 08, 2018 4:30 pm

Sounds awesome. Didn't know it was possible to go that high in cubes on a panhead engine. Can't see the picture.

dragstews
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Re: 48 Pan Hot-Rod motor build ...

#5

Post by dragstews » Mon Jul 09, 2018 8:32 pm

The cases are after/market, made by STD .... These are made Heavy-Duty with a world of deck meat...
They would have no problem supporting that large of a bore ..
Stock heads was going on the shelf being we found a set of STD's (Shovel ports) to mate up with the Big Bore jugs...

...... But ......

After doing the math ... $$$ ... It's adding up. :shock:
We have a few other irons in the fire..
Up-grading both shafts, going to go with the Timken bearing and the 58-up pinion shaft...The case was made with this in mind...
Up-grading the stock rods to H-beams.

Owner decided to keep his 4-3/4" stroke and just beef the crap out of the lower-end ... No Big Bore in the picture....
Keeping the 1948 heads in play also.... Will be going to a oversize intake (.125") just to help feed the 88 cubes that it's going to stay at ...

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