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B2 Motorsports - Cliff Rosson All-Aluminum 331 SBF Build
Going to start throwing some pictures up here pretty soon of Cliff's build. It's based on an aluminum Dart block, 4.030 x 3.250, using a Callies Dragonslayer crank, Oliver rods, and a set of Mahle pistons/rings.
Heads are a set of Trick Flow Twisted Wedge Track Heat 185cc heads, loaded with Ferrea valves and PAC springs/retainers. Cliff chose a set of Webers for the top end, so the cam (custom Comp Cams hydraulic roller) will reflect that. More to come... |
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Aluminum Dart 8.200" block, pressure tested, bored and honed with torque plates, sleeves set, square decked, align honed, and cam bearings Loctited in.
http://i170.photobucket.com/albums/u...ps580ff0e3.jpg http://i170.photobucket.com/albums/u...psd9ff16f6.jpg |
Brent,
Can we see a chamber-side view of the TFH's? |
Hey Brent, what's the bagged up, skirted block in the background? It looks much shinier than my Pond block and I don't see the black freeze plugs of a Shelby block. Is it just the lighting?
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It's a Pond block. They look a little different every time I get one.
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Maybe he's making improvements? BTW, if I were building a 302-based engine, say for a GT40, then this 331 sounds like exactly like what I would build. Lots of high dollar parts. |
The Pond block has the same cast number and same design. However, the foundry that he uses puts a different *tinge* on each block. Anthony Dimis' block is a little darker than most, and I just sent one out that was a little lighter than most.
Yep, this little small block is going to be sweet. Waiting on Oliver to send another batch of rods. This is not a 2.123" Ford rod journal, but a 2.100" SBC journal. It's hard to get a 5.400" rod with a 2.100" bore and SBC big end width. |
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Totally unshrouded-very nice. Is that like a 56cc chamber?
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58...........
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Callies website says the shortest stroke for Dragonslayer SBF crank is 3.5", Magnum can offer shorter strokes.
http://www.callies.com/crankshafts/d...ll-block-ford/ |
Yeah, their website doesn't show a lot of stuff that I've ordered from them....
http://i170.photobucket.com/albums/u...psf161c8f4.jpg |
Cliff, did you have any epiphanies about the dry sump setup? I will start prepping the block this week and will need to know whether to start laying back the pump hole to match the pump, or to block it.
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The only way I would do it is if I could lower the engine to take advantage. We looked at it yesterday and I just don't see that I can lower it much, if at all. I would want to put the tank in the trunk. Running the lines did not look very elegant, but I would make it work if I could lower the COG.
We are so bogged down tuning the steering and front suspension with a lot of modifications to go, it is too much for me to add without a clear path. If anyone has lowered the engine in an ERA FIA and can tell me about it (gearbox and differential mounting locations and pinion angle) I am interested, otherwise we will install Accusump and be nice to it. :3DSMILE: chr |
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I see your need to make that decision. And I don't know of any lowered drive train ERA's (though a call to Peter about Rodameister's FIA track car might be helpful).
But before quitting the dry sump idea, I'd have looked at a passenger's floor location for the tank. Much shorter line runs and away from the driveline. And you don't seem to be adding a radio and ashtray for passengers. ;) |
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With it on the floor board the passenger would just put feet on it? chr |
Hold off a minute Brent, we want to study this a little more.
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