Re: The 505 must be getting popular
[Re: AndyF]
#2624302
02/21/19 05:33 PM
02/21/19 05:33 PM
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Joined: Jan 2003
Posts: 2,094 central texas
krautrock
top fuel
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top fuel
Joined: Jan 2003
Posts: 2,094
central texas
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i think the problem is the main bearings selection, not the rod bearings. a 2.2 journal is the rod journal.
while we are on the subject, any of you guys think the PP240 head is too much head for a healthy 451 low deck street motor with maybe a cam like the MP 284 solid.
Last edited by krautrock; 02/21/19 05:34 PM.
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Re: The 505 must be getting popular
[Re: AndyF]
#2624608
02/22/19 10:40 AM
02/22/19 10:40 AM
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Joined: Dec 2018
Posts: 76 MASSACHUSETTS
Chip
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Posts: 76
MASSACHUSETTS
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OK...i see that only Clevite 77 P-Series Main Bearings are available for the low deck engine. At 600hp, this should not be an issue according to what I have read. I see Trickflow has a cam for racing... https://www.trickflow.com/parts/tfs-61602003 Anyone tried this Cam?
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Re: The 505 must be getting popular
[Re: AndyF]
#2624618
02/22/19 11:22 AM
02/22/19 11:22 AM
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Joined: May 2008
Posts: 5,399 Aurora, Colorado
451Mopar
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master
Joined: May 2008
Posts: 5,399
Aurora, Colorado
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The 505 we are currently building is going together very easy. It is the 440 source kit with the light weight crank option and rods with the ARP2000 bolts. All the clearances were good, did not have to miss with fitting the rod pin ends, 0.0025" rod clearances, 0.003" main clearances. crank end plat in spec, rod side clearances in spec, crank and rods clear the block fine, closest the rod comes is to the oil puckup tube that has the large 1/2" tube adaptor on the pickup tube. The cam bearings even went in with no problem or having to clearance them. So far only thing not totally happy with was the balance job. Although it is fine for the mild combination we are building, the weight difference on the rod big ends varied by about 3-grams.
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Re: The 505 must be getting popular
[Re: Chip]
#2624705
02/22/19 02:34 PM
02/22/19 02:34 PM
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Joined: Jan 2003
Posts: 18,025 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 18,025
S.E. Michigan
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OK...i see that only Clevite 77 P-Series Main Bearings are available for the low deck engine. At 600hp, this should not be an issue according to what I have read.
That's what I have in mine, full groove mains in this 451. I've had it apart once for inspection since the initial build, they're holding up. No worries, you can run those P bearings. I usually use 15w40 or 20w50 oil, 65+ psi hot, but I'm thinking I might run 30 weight this spring, maybe synthetic, and see how I like it. I bet it will be fine. Can't help on the cam (mines a solid roller).
Rich H.
Esse Quam Videri
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Re: The 505 must be getting popular
[Re: AndyF]
#2624783
02/22/19 05:16 PM
02/22/19 05:16 PM
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Joined: Jan 2003
Posts: 18,025 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
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Posts: 18,025
S.E. Michigan
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Chip, I am running RPM heads that I blended slightly at home (by eye/common sense...I don't have a flow bench), and a .630 gross lift Custom Comp that was ordered from Dwayne Porter.
Off the shelf bearing selection is kind of limiting. at least 440 source has chamfered mains available.
Old ('70s) publications used to discuss various ways builders would massage the bearings for a desired end result. I've never done anything like that myself, but it is funny how it is almost a taboo topic these days.
Rich H.
Esse Quam Videri
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Re: The 505 must be getting popular
[Re: Chip]
#2624957
02/23/19 12:53 AM
02/23/19 12:53 AM
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Joined: Jan 2007
Posts: 8,067 Mt Morris Michigan
mopar dave
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master
Joined: Jan 2007
Posts: 8,067
Mt Morris Michigan
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I used the Clevite ms876p full groove main bearings in my 511 with Molnar crank. I did not chamfer them. Plain forgot too, but had .008 or .009 crank end play anyway. Didn't have any binding of any kind. Beat on it last 2 seasons and so far all is well with 80psi cold oil pressure and 65 hot at idle in drive. I use Amsoil 20/50 Dominator with .003" main bearing clearance. Also, just remember coating those bearings closes up some oil clearance.
Last edited by mopar dave; 02/23/19 12:55 AM.
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Re: The 505 must be getting popular
[Re: Chip]
#2625036
02/23/19 11:47 AM
02/23/19 11:47 AM
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Joined: Jan 2003
Posts: 10,081 Frostbitefalls MN (Rocky&Bullw...
gregsdart
I Live Here
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I Live Here
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Frostbitefalls MN (Rocky&Bullw...
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Thanks for the feedback guys.
If the crank is cut with the 2.200 BBC journals...is there a better selection of main bearings? 440source kits come with bearings.
So I will look at different Cam options too. The MP 590 is as old as the TRW 2293's that came outta my 383...
Dwayne...i hear you about wanting more power in the future...but I can build for that then. Winters are long here as you know:) I will have to look into your services. The calender moves much quicker than you think! Plan for that extra power as much as you can now so you don't have to duplicate purchases or worse, re engineer a large part of your build. Stick with the small main bearings.
8.582, 160.18 mph best, 2905 lbs 549, indy 572-13, alky
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Re: The 505 must be getting popular
[Re: Chip]
#2625251
02/23/19 10:17 PM
02/23/19 10:17 PM
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Joined: Nov 2009
Posts: 3,082 St. Paul , Mn.
tubtar
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master
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Posts: 3,082
St. Paul , Mn.
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OK...i see that only Clevite 77 P-Series Main Bearings are available for the low deck engine. At 600hp, this should not be an issue according to what I have read. I see Trickflow has a cam for racing... https://www.trickflow.com/parts/tfs-61602003 Anyone tried this Cam? It is probably O.K. in a generic sort of way , but TrickFlow is known for cylinder heads. I'd call a cam grinder and get exactly what you want. There are several I have read about on these pages. I called Bullet and really like what they came up with for me. You will need specific numbers......head flow at the top of that list. But build info......compression , intake , trans , gears etc. Intended use. Mine is not an all out effort , and I made some compromises for street manners.....so this isn't just for hard core race engines. What they suggest will not be reinventing the wheel , but more like refining it specifically to your motor / car.
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