Drag Race 462 Engine Refresh

Discussion in 'Race 400/430/455' started by ronbz455, May 4, 2013.

  1. ronbz455

    ronbz455 Big Butz Racing

    It all started about a month ago when the weather started getting better and the sound of drag racing was heard from IRP in Indy. I knew the 350 wasn't getting done and my 455 build wasn't started so I gave Todd a call and said let's take the 462 out of your GS and freshen it up to go racing again! He said ok let's do it!
    Here is some pics when we started and I will put more on when I get time. Oops I forgot the pics let's see if this edit works.:rolleyes:
     

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  2. ronbz455

    ronbz455 Big Butz Racing

    Checking the main clearance I found #1 and #4 had .003 clearance and the rest had .002 which is what I was looking for. I had the crank checked and they said polish would be all that it would need. I got new bearings, fully grooved them and checked again. Same thing. Instead of having it line honed I just clean the two main cap maiting surfaces with the belt sander. After that .002 all the way through and the crank spun freely. Yes it should be line honed but it needs bored also so that will happen later in life.
     

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  3. ronbz455

    ronbz455 Big Butz Racing

    Deglazed the cylinder with a 240 grit ball hone and there is scratches still there. Checked ring gap and # 2 was around .020 at the tight spot, "cylinder taper", and the top one was as big as .032.
    Replaced and fit the 4.350, .020 over Chrysler 440 Mahle crome flash top ring to around .018 at the tight spots in each cylinder. I know you shouldn't use crome but they were 45 dollars and the cylinders need bored so we will see how long they last if they seat. I left #2 and the same oil rings on the pistons that I have been running for 6 years.
    I also cut all nibs off pistons. By the looks of the tops of the pistons when I took them out it will run better with them out of the way.
    Next the old KB 7XR cam with a fresh coat of Isky cam lube on the lobes and assembly lube on the journals.
    Installed the Rollmaster 9 way Doulble Roller with a replacement Cloyes timing chain. Not much play there! I marked where the keyway and timing marks were before I took them off and put them back exactly where they were.
    Next I checked the cam timing and perfect. 106.5 spec. 106 intake centerline.
    Installed the Halo Girdle next. :TU:
     

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  4. WhiteRiviera

    WhiteRiviera Well-Known Member

    Great progress!
    What compression ratio are you running with this setup? Which pistons and rods?
     
    Last edited: May 10, 2013
  5. killrbuick66455

    killrbuick66455 Well-Known Member

    I'm definitely getting a Halo for my next build Great Job Rob !!!
     
    Last edited: May 11, 2013
  6. ronbz455

    ronbz455 Big Butz Racing

    I don't know how some of you get Rob from Ronbz but my name is Ron. Ok It has 7 Sealed Power forged 70 style dish pistons and 1 Kenne Bell 70 style piston since the first time we took this engine that was rebuilt by Stevenson a long time ago and put my old 107 KB cam, my heads and B4B with Freds Quadrajet on it and on the first run at Muncie it ate a lobe off the cam after 1st gear and I ran it all the way down to the end of the 1/4 and it tore up a piston so that was what we replaced it with. It still ran 11.17 on 7 cylinders. That's when we started running the 7xr cam because that was what Fred had at that time. Then we was running 10.80's and 90's so we took it back out got another set of stock rods, and I polished the beams, had the piston pins fitted for .001 clearance, Got a JW heavy SFI Flyplate and Romac balancer to be legal to run 10.90 in Super Street. Plus balanced it. That might be the set up when I won the 2 gambler races here at Indy when the Buick race was here. Which I would love to see it come back here if anyone can get that set up.
    The head cc is 62, the pistons are .020 down in the hole, small dish in the pistons, stock stroke and bored.030 over. So who wants to figure out the compression? I say it's pushing 500 HP but Fred says 450.
     
  7. ronbz455

    ronbz455 Big Butz Racing

    I got a rebuildable timing cover from Fred that already had a Distributor gear oiler installed with some oil mods done and a new Kenne Bell aluminum booster plate anodised for strength and front seal for $120! :TU:
    That price would be more for other guys since we have been dealing together for years.
    For my other 455 build I will get a new one to start with.
     

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  8. killrbuick66455

    killrbuick66455 Well-Known Member

  9. ronbz455

    ronbz455 Big Butz Racing

    It's all good Eric. Before I put the oil pump gears in the housing I drilled a hole in the idler gear to help keep it lubed to the pin that it spins on. These are pics of the old gears. I also filed the ends of the gears to remove sharp edges that could tear up the pocket. I assembled the oil pump and it wouldn't turn. But first I check the clearance of the gear face to housing face which was .002. I miced the oil pump gasket and it was .005. The gasket on the oil filter cover just has to seal with the right holes in it with the Kenne Bell aluminum booster plate. After torguing the cover to 96 inch lbs the oil pump shaft wouldn't turn. Took it back apart and added a .007 cover gasket between the plate and the housing and retorgued the cover. Turns freely and has .003 endplay.
    I topped it off with a PF24 oil filter. I will fill the filter and oil pump with oil before turning the oil pump shaft to prime the engine.
     

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  10. ronbz455

    ronbz455 Big Butz Racing

    Here is a video of the car with 200 lbs in the trunk area before I took the engine out. Trying to run 11.00

    http://www.youtube.com/watch?v=1K2tbFHm0eY

    ---------- Post added at 10:36 PM ---------- Previous post was at 09:07 PM ----------

    I get tears in my eyes every time I see that clip. It was a nice finish to years of work.
     
  11. ronbz455

    ronbz455 Big Butz Racing

    I took that cover back apart and change the gaskets again and now I got .001 clearance and it turns freely so that's done.

    I got A set of .015 and .032 intake gaskets fron TA today and test fitted with the .015's after some triming on the 4 corners and the bolts barely go in. I checked with a wire and it catches the inside of all runners on the intake to the head pulling the wire outward. So I can match the ports a little. I will open the bottom side of the intake holes a bit so it's easier to get them in. What would be the best way to tell exactly where the intake runner openings meet the head ports so I don't over port?
     

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  12. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

  13. ronbz455

    ronbz455 Big Butz Racing

    I thought about it and I'm going to outline the intake gasket where the intake sits then pull it off, line up the marks on the gasket to the intake and cut a little less than the gasket since my heads aren't opened up as big as the gaskets either.
     
  14. ronbz455

    ronbz455 Big Butz Racing

    What would be the best glue to use to attach the intake gaskets to the heads that would come back off easy without tearing them? I was thinking of a couple of dabbs of black or clear RTV.
     
  15. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Edelbrock makes Gasgacinch. That is one of their claims. http://www.summitracing.com/parts/EDL-9300
     
  16. ronbz455

    ronbz455 Big Butz Racing

    Larry you come up with everything! I wonder if that is like anerobic sealer you know the red stuff?
    I have been making a new pick up tube since my screen was torn a little by the pipe edge where it sucks oil. The ideal of the pipe being longer than the screen face don't make since to me. When the screen stops up with debri than it can't suck around the opening of the pipe. So I changed the intake a couple of times and some GMS was stuck on the screen by the inlet pipe. That tells me it was hard to get oil in the pipe so the screen broke to let it flow since we sealed the bypass valve in the pick up to keep from debri getting pass the screen. Here is a pick of the pick up which has lasted 20 years of racing and the new pick up I'm building.
     

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  17. ronbz455

    ronbz455 Big Butz Racing

    Ok let's go back to the heads and intake. I know you all out rich Buick race guys are just watching this thread and seeing what I'm doing to get the most out of a stock 455. Hey if I can run a 10.70 I'm happy.

    I am close to the gasket from TA on the heads and I have to lower the bolt holes just a tad for the Kenne Bell intake "Cool Runner", I am spending alot of time on a worn out block and 20 year old race stage one heads. I know this car is running faster than alot of stock Buicks but all upgrades are a plus for the Buick builders.
     

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  18. ronbz455

    ronbz455 Big Butz Racing

    Ok I used gm anarobic gasket maker to hold the gaskets down in a couple of spots when I put the intake on. It never dried and it was sticky.
    I bolted the intake on the heads and instead of pinning it I cut the top edge of the intake gasket even with the intake to use as a centering line when I put the gaskets on the intake to mark them for grinding.
    I just got the ports done today on the intake.
    But first the heads weren't ported big enough for the TA gaskets. So to make sure the head ports were big enough I ground them out. I think I got pics for the heads that I will show first.
    These are the pics before grinding.
     

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  19. ronbz455

    ronbz455 Big Butz Racing

    Here is a pic of the heads after I match ported them to the TA gaskets. The gaskets weren't tall enough so I cut them a little too high. I will put a little GMS when I install them.
     

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  20. 462 Chevelle

    462 Chevelle 462 chevelle

    the only time i ever used anaerobic was when i was working on detroits or cats. on every oring.
     

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