Bloomer stroker cranks ?

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07raptorgytr

07raptorgytr

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I want to know if Rod Bloomer is still making stroker cranks. And if so does anyone know what he has available? I know the easiest way to find out is to call him, but I figured I would shoot a general question to the masses. Thanks
 
I bought one last year. Pretty sure he's offering up to 4.250 stroke for smallblocks with 340 or 360 mains. Got mine with the 2.100 rod journal. Top notch piece.
 
Can't say what the crank alone cost. I bought a complete rotating assembly including crank, Callies rods, RaceTec pistons, bearings, rings, and pins. Total cost was around $2250 shipped to my door.
 
That isn't to bad of a price for everything. What block did you build , 340 or 360? And over all cubes, and pump gas friendly?
 
The price was more than fair considering the quality of parts and Rod's precision with the crank. Build consists of .060" over 340 block, 59cc W2 heads. Measures out to 422 cubes. 10.76 compression so I'm gonna try to run it on 93 pump juice, maybe 50/50 race gas mix for the track.
 
340 is a 4.04 bore. At .060 over, it is now a 4.100.
4.10 bore X 4.25 stroke = 448.89 cubic inches.

A ..060 - 360 (4.06) with a 4.25 crank equals 427.26.
 
I bought a 340 main, 2.00" rod 4.125 crank last year from Rod. It measured very good but the crank key way was 3° off.
 
Chuck Berry
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many snappers all around my feet
Shure was hard swimming cross that thing
with both hands holdin' my ding a ling:thumbsup:
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rumblefish360 said:
Little Richard?
Click to expand...
 
justinp61 said:
I bought a 340 main, 2.00" rod 4.125 crank last year from Rod. It measured very good but the crank key way was 3° off.
Click to expand...

I believe I spoke to you before about this crank and the problem with the keyway being off 3*.
Where does rod source his crank cores?
 
07raptorgytr said:
I believe I spoke to you before about this crank and the problem with the keyway being off 3*.
Where does rod source his crank cores?
Click to expand...

His Crank is cast in China...just like Eagle...Scat...and ?
 
rumblefish360 said:
340 is a 4.04 bore. At .060 over, it is now a 4.100.
4.10 bore X 4.25 stroke = 448.89 cubic inches.

A ..060 - 360 (4.06) with a 4.25 crank equals 427.26.
Click to expand...

But,,,he didn't say he went 4.250 himself. I'd suggest the whole formula when showing math, in case newbies were trying to figure out how you got those answers. Pi x radius squared x stroke, not everyone passed math class or cared too. Lol
 
Just spoke to Rod Bloomer today. Looks like I will be going with his rotating assembly for my small block 436". Now I send the 340 block out to make sure we can go 4.100" on the bore, a magnaflux for cracks and maybe by this time next year will have a fire breathing street motor.
 
I've always used bore X bore X stroke X .7854 X the number of cylinders.
 
Very many of you gone as far as running a 4.100 bore? The 340 block I'm sending out for sonic test is already at 4.070, and if it needs a bore job I may go straight to a 4.100 with my 4.125 stroke. I was just curious if anyone seen any cons to going this big of bore.
 
Why not go 4.08? My R1 was 4.08" but had to go 4.09", yes custom pistons.
 
Iam already getting custom pistons for what ever I build, so that wouldn't be an issue for me. Yes I could go 4.080 as long as a simple hone will clean up the bores but I figured to just go to 4.100 in the event the prior bore job wasn't done correctly and cylinders weren't aligned..
 
Rodzilla said:
But,,,he didn't say he went 4.250 himself. I'd suggest the whole formula when showing math, in case newbies were trying to figure out how you got those answers. Pi x radius squared x stroke, not everyone passed math class or cared too. Lol
Click to expand...
Right. I went with 4.00" stroke x 4.100" bore.
 
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