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New 598 build, mud racing

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bruno
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2 wicked
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Post  2 wicked February 26th 2021, 5:01 pm

Got a few more pieces on the way, ordered a new carb from Pro Systems. XC 1300 series dominator. Got a matching fuel log as well. Patrick is a real nice guy to deal with. Took time to go over the build with me, very impressed. Thanks cory

2 wicked

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Post  2 wicked March 16th 2021, 7:01 pm

Carb showed up today, xc 1300 pro series dominator. Looks real nice, will see how it works once we get on the dyno. And on the track. Thanks cory

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Post  2 wicked April 9th 2021, 10:36 pm

Well, finally got into machine shop. Sounds like block will be done in a week or so. Layne auto. Once the block gets done I can get everything mocked up and check clearances. Then back to shop for balancing. Thanks cory

2 wicked

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Post  norm April 10th 2021, 8:27 am

Are you planning to dyno?
norm
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Post  2 wicked April 10th 2021, 8:34 am

Norm, we plan to dyno but I really don't care either way. Lol I have always tuned engines old school, looking at plugs and seat of the pants. Thanks cory

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Post  2 wicked May 12th 2021, 7:22 pm

Heard from the machine shop today. Block is done, bored to 4.6, line bore checked, lifter bores checked and honed, decks finished for Cometic head gasket. Going to pick it up next week. Then I will mock it up, check rotating assembly clearances. Make sure crank counterweights clear the bulkheads. Then back to the shop for final cleaning, cam bearings and balance rotating assembly. Getting a little closer. Thanks cory

2 wicked

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Post  2 wicked May 15th 2021, 2:46 pm

Hey all, ordered up a header kit, pretty sure it will work with the new chassis we are building as well. 2.25 primary - 4" x 14" collector. .325 flange. Just another piece to the puzzle. Learned a valuable lesson the other day, bought a 9" brace kit from summit. Never doin that again. Looked good but had to spend 3 hrs to get it close to fitting housing. It was terrible. The last one I bought from jegs took 5 minutes and was ready to weld. Thanks cory

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Post  2 wicked July 10th 2021, 8:29 pm

Got a few more pieces to the puzzle ordered today, CVR vacuum pump kit. Been working on the new chassis, got the rear suspension almost done. have to get the shocks mounted yet, then start on the front suspension. Waiting on the machine shop to get rotating assembly balanced. Then start final assembly of the engine. Thanks cory

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Post  2 wicked August 5th 2021, 8:09 pm

Hey all, heard from the machine shop today. Rotating assembly balanced and ready to pick up. Going to take the intake in and have the clover leaf milled out. Then have to do some blending and port work. Can finally get started on final assembly in a couple weeks.

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Post  norm August 6th 2021, 7:20 pm

Awesome! Hoping to run it yet this year?
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Post  2 wicked August 6th 2021, 7:47 pm

Hopefully get it on the Dyno before winter, got to build a run stand yet. Have all the stuff, just don't have the time!!! Want to run the new grenade at home, so I can do all the little stuff, rough set timing, tweak the carb, retorgue heads and set valves hot. That way we don't have to fiddle with that stuff at the Dyno shop. Thanks cory

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Post  2 wicked September 7th 2021, 9:37 am

Started assembly of short block, rod and mains are a little tight, .002 rods and .003 mains. Ordered some 1x rods and main bearings. If I use a half shell it should out me at .0025 rods and .0035 mains. Piston clearance was right on diamonds rec of .0065. got to order head gaskets .051 thick and then some rocker stand shims from kfm. Hopefully have it assembled in a month or so.

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Post  Lem Evans September 7th 2021, 10:51 am

2 wicked wrote:Started assembly of short block, rod and mains are a little tight, .002 rods and .003 mains. Ordered some 1x rods and main bearings. If I use a half shell it should out me at .0025 rods and .0035 mains. Piston clearance was right on diamonds rec of .0065. got to order head gaskets .051 thick and then some rocker stand shims from kfm. Hopefully have it assembled in a month or so.

you need 10 or 18 bolt head gaskets?

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http://bfevansraceparts.com

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Post  2 wicked September 7th 2021, 1:15 pm

Lem, they are 18 bolt, the cyl heads I got thru you. Will call later this week and order some more parts. Thanks cory

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Post  2 wicked January 29th 2022, 5:38 pm

Hey all, been a while since I posted progress. Been sidetracked, we've had 5 deaths in the immediate family in the last 5 months. Haven't been working on the new engine much. Got the short block assembled. Ended up with .0038 on mains, .0027 rods, .0065 skirt clearance. .006 end play on crank thrust and .004 cam thrust. Ring gap .028 top and .030 second. Camshaft was ground on 110 icl installed at 108.5 icl. Hoping too get to work on it next weekend. Have too mach up for pushrod length and see how much needs trimmed off the head studs. Then I can check if I'm getting enough oil up top. Have a .125 restriction in lifter gallery. And see if I will have to mod the lifters. Thanks cory

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Post  Mark Miller January 30th 2022, 12:31 am

2 wicked wrote:Hey all, been a while since I posted progress. Been sidetracked, we've had 5 deaths in the immediate family in the last 5 months. Haven't been working on the new engine much. Got the short block assembled. Ended up with .0038 on mains, .0027 rods, .0065 skirt clearance. .006 end play on crank thrust and .004 cam thrust. Ring gap .028 top and .030 second. Camshaft was ground on 110 icl  installed at 108.5 icl. Hoping too get to work on it next weekend. Have too mach up for pushrod length and see how much needs trimmed off the head studs. Then I can check if I'm getting enough oil up top. Have a .125 restriction in lifter gallery. And see if I will have to mod the lifters. Thanks cory

Sorry to hear about the 5 Deaths in your family,lost my dad last week i made a post in the General Section on here if you want the details!!

Mark Miller

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Post  2 wicked February 22nd 2022, 10:04 pm

Well I worked on the new motor, started mocking up the T&D rockers. Lots of clearancing to do. All the exh stands hit the nut on the head studs, but clear the stud. Have to remove about a .080 on the bottom radial relief. The int stands need clearanced only at each end near the front Inside head studs on #1 cyl and #8 on the other side. Ah the joys of building engines. Thanks cory

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Post  2 wicked May 7th 2022, 4:20 pm

Hey all, got back to the engine last weekend, measured for pushrods, ended up with 9.067 int and 9.478 exh. Checked them 3 times got within .002 on all measurements. looks like miles of room for 7/16 on exh both ends, the int is very close to the tie bar rivet. Got about 010/.015 clearance, going through the head about the same. With a 3/8 dia length checker. Think I'm going with smith bros. They will make them the exact length you spec. Probably going 3/8 .145 wall int and 7/16 .165 wall dual taper exh. Hopefully get them ordered this week. Smith bros told me it would take about 2 weeks. Was hoping to have the motor ready for this season but shit happens. Going to run the 557 again this year in our old chassis. Haven't got much done on new chassis. Thanks cory

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Post  rwjaeger May 12th 2022, 2:03 pm

Cory I got a big carb if you need one for testing,its an APD 2.4" , needed it for this new intake I'm getting

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Post  2 wicked May 12th 2022, 9:45 pm

Thanks for the offer RW. Just might take you up on that. May be a bit more CFM than we need. Lol. Thanks cory

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