My 340 build

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MoparMark91 said:
Any idea where i could get those? Cant find em on summit only undersize
Click to expand...

Need your brand and part number to check it out.
But King says this about there chevy bearings.

Notes
These bearings are available in the traditional Std, .010, .020 and .030 specs.

In addition, they are also available in the X.001 and .001

The X001 bearing is used when 0.001" of additional crank clearance is required.

The 001 bearing is used when the clearance is needed to be tightened up by the one additional 0.001" of reduced clearance.

Some parts are not legal for use in California or other states with similar laws/regulations
 
Jadaharabi said:
Need your brand and part number to check it out.
But King says this about there chevy bearings.

Notes
These bearings are available in the traditional Std, .010, .020 and .030 specs.

In addition, they are also available in the X.001 and .001

The X001 bearing is used when 0.001" of additional crank clearance is required.

The 001 bearing is used when the clearance is needed to be tightened up by the one additional 0.001" of reduced clearance.

Some parts are not legal for use in California or other states with similar laws/regulations
Click to expand...
Well i would like to use clevite but ill use king if i need to, to be honest im still not seeing it lol
 
Jadaharabi said:
Also doesn't your crank need a radiused bearing.
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Im not sure on that, and ill double check part number but i believe they are clevite ms-540p ill double check. Those are the main bearing part number it all came in my scat kit amd im hoping i didnt toss the box
 
I believe i found the rod bearings that give a little more clearance but not the main bearings
 
MoparMark91 said:
Im not sure on that, and ill double check part number but i believe they are clevite ms-540p ill double check. Those are the main bearing part number it all came in my scat kit amd im hoping i didnt toss the box
Click to expand...

ms-540H is full grove

Series Full Grooved Crankshaft Main Bearing Set (MS540H) by Clevite®. These bearings are identified by a letter H in the part number suffix. Part numbering is based on the same core number as the standard passenger car parts for the same application. These bearings were developed primarily for use in NASCAR type racing, but are suitable for all types of competition engines. H-Series bearings have a medium level of eccentricity, high crush, and rod bearings have a hardened steel back and thin overlay.



Specifications:
Size: Standard
Material: Tri-Metal
Type: Full Grooved
Groove Type: 180 Degree
Oil Clearance Size: Standard
Features:
Expertly crafted from premium materials
Designed to match rigorous quality standards
High quality at a budget-friendly price
These bearings also have enlarged chamfers for greater crankshaft fillet clearance and are made without flash plating for better seating. Bearings with .001" extra clearance are available for standard size shafts and carry the suffix HX" (X = extra clearance). Rod bearings are available with or without dowel holes (HD = with, H = without), main bearings are available with standard 180 degrees upper half grooving and with full 360 degrees grooving (H = 180 degrees, HG 360 degrees). Use H-Series bearings with crankshafts that have oversize fillets and where engines run in the medium to high RPM range. H-Series bearings should be used if contact patterns obtained with P-Series parts are too narrow. Contact patterns should ideally cover 2/3 to 3/4 of the bearing surface. If you aren't sure which type of performance bearing to start with, the H-Series bearing will be your best choice. more details on - Clevite® MS540H - H-Series Full Grooved Crankshaft Main Bearing Set
 
cle-ms909h_w_ml.jpg

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$112.99

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    Main Bearings, H-Series, TM-77, Standard Size, Dodge, Plymouth, 318, 340, Set of 5

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    • Additional Info
    • Overview
      Brand:Clevite Engine Parts

      Manufacturer's Part Number:MS-540HX

      Part Type:Main Bearings

      Product Line:Clevite H-Series Main Bearings

      Summit Racing Part Number:CLE-MS540HX


      UPC:27067452498

      Bearing Usage:performance

      Grooved Bearing:Yes

      Groove Location:Upper

      Groove Style:1/2

      Bearing Material:Tri-metal, TM-77

      Quantity:Sold as a set of 5.

      Notes:Bearings have 0.0010 in. more oil clearance.

      Description: Clevite H-Series main bearings were developed primarily for NASCAR racing, but are well suited to other types of competition engines as well. They're especially good for engines that run at medium-to-high revs. They have steel backings with carefully selected overlays and a high crush factor, plus a medium level of eccentricity. H-Series bearings have enlarged chamfers at the sides for greater crank-fillet clearance and are made without flash plating for better seating. They are also available with either 180 degree or 360 degree oil grooves, as well as an extra 0.001 in. of clearance
Same part number differant description.
Looks like the H series can be either full group or just half Groove and you can get them in the .0010 extra clearance size.
 
The mains are the right part number but are not saying they are +.001 in their description. Might want to check that.
 
Okay guys so after dealing with scat and summit, they went ahead and sent me the rod and main bearings to provide more clearance. Now im happy as it rotates very good and piston yo wall clearance good and ring end gap. So rotating assembly minus the camshaft is good to go now.

As for camshaft i have been doing a ton of research and have a few cam at my disposal to use but havent decided yet. I realize im going to be around 10.5 to 1 for compression i believe(will triple vheck to verify).

So i have the XE268H
I have a lunati voodoo 10200704
I have a XE274H
I can aslo wait a bit and order another one if need be but out of these 3 what would be the best to use with my combo on a street beast that will go to track once in awhile?
 
Jadaharabi said:
What is your clearance?
How much torque to turn it over now?
Click to expand...
25-28 ft lbs
Clearances are .0025 across the board on mains except thrust bearing is a hair over
Rods are .002 across the board
Also will be running hv oil pump
 
You know to run the hardened intermediate shaft with that high volume pump?
As for your cams I like the xe274h. Just my choice of the three you have. If you want to race more often than cruising I'd use the voodoo.
 
Jadaharabi said:
You know to run the hardened intermediate shaft with that high volume pump?
As for your cams I like the xe274h. Just my choice of the three you have. If you want to race more often than cruising I'd use the voodoo.
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That was actually a question i was going to ask so now i know thank you. I was leaning towards the xe274 myself but hope i wont have to change springs or anything. With the xe268 i was worried about to much pressure so i feel the xe274 or the lunati would solve that. I do like the xe274 amd the lunati i just want best bang out of this engine. I will be cruising but will probably be doing some agressive cruising with some track time
 
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