C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

406 plan almost complete.

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Old Dec 5, 2004 | 02:26 PM
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Default 406 plan almost complete.

I am planing on building 406 its been a long planing process. Here is the list of part on my list to get is there anything I need to add or change, this is my first time building an engine but will have help from someone with expierence.

400 SBC engine Block
Dart Pro 1 215cc-64cc-2.08/1.60 PN-1151143 heads
Scat 9000 series crank 3.75in/5.7in
Scat 4340 I-beam pro series 5.7x2.1 7/16 Bushed
Comp Cams Xtream energy Mech. Roller cam
SRP 4.155 -16cc inverted dome pistons
Total Seal Gapless TSS Street Set rings
Cloyes True Roller Timing Chain
Comp Cams Mech.Roller lifters
Comp. Pro Magnum 1:6 rockers
Comp. cams pushrods
Hooker Super comp. Headers
ATI dampener
Rod Bearings
Cam Bearings
Main Bearings
Freeze Plugs
Head gaskets
Intake gaskets
Oil Pan gaskets
SuperRam and TB gaskets
Misc. gaskets
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Old Dec 5, 2004 | 02:50 PM
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make sure you get a small base circle cam .880

and im not sure about them heads your using whats the flow number on them ..
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Old Dec 5, 2004 | 02:52 PM
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Total Seal Gapless TSS Street Set rings
I have heard other people have had problems with these. I ran Childs&Alberts Zgaples rings which have a regular moly top ring and a gapless 2nd ring. You will also need water pump, radiator, flywheel, radiator hoses, thermostat, roller cam button(I would suggest Cloyes 2 peice billet timing chain cover with an adjustible cam button built in), new arp head bolts, I would suggest splayed main caps with arp studs(requires block to be aligned bored with new main caps), Melling blue printed high pressure oil pump(High volume is not needed), Arp balancer bolt, new engine mounts...and other stuff...
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Old Dec 5, 2004 | 02:53 PM
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make sure you get a small base circle cam .880
You should not need a small base circle cam with the 3.75in stroke...
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Old Dec 5, 2004 | 03:02 PM
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I had Dart 215's and 3 plugs interfered with the Hooker 2151's, you may want to check on the headers clearance for the pipes you get
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Old Dec 5, 2004 | 03:02 PM
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What about the ATI balancer I think it is a little expensive what other choices do I have?
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Old Dec 5, 2004 | 03:07 PM
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ATI balancer or fluidampner, I would not skimp on a dampner...I have brodix track1 heads and had no clearence problems with Hooker 2151's
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Old Dec 6, 2004 | 12:33 PM
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Originally Posted by chriswtx
You should not need a small base circle cam with the 3.75in stroke...

true but you could always go with more storke , so why spend money on another cam if he ends up upgrading later on ..
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Old Dec 6, 2004 | 01:51 PM
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Chris.......not always true. My cam is on a 1.10 base circle and i only had .010 clearence using Lunati sportsman rods. It was either grind the rods or get a smaller base circle cam.
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Old Dec 6, 2004 | 01:51 PM
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Originally Posted by chriswtx
ATI balancer or fluidampner, I would not skimp on a dampner...I have brodix track1 heads and had no clearence problems with Hooker 2151's
I see ATI's graph is a red x. In thier own comparison testing, the ATI was worse than competitors up to ~6K RPM. Good for NASCAR, but there are better dampers out there for a more normal operating range. Chris mentions Fluidampner here, they were on that ATI graph as being more effective in the RPM range of a SR motor.

Good luck, it should fly
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Old Dec 6, 2004 | 04:32 PM
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chriswtx did you use straight or angle plug dart 215's
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Old Dec 6, 2004 | 05:02 PM
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ld85 here, I had the Dart 215 CC straight plugs, you do not want them. I have some pics of the Darts I can email if you like.
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Old Dec 6, 2004 | 08:57 PM
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I'm completing my 400 build-up, very similiar. I have Dart Pro 1's that started out as 200cc and now are 225cc with 296 cfm@.600". I would prefer a smaller runner but my low lift #'s aren't bad 240cfm@.400".and I have a solid roller with 250+@.050. Anyway I haven't tried the headers yet but I have angleplug head and my headers are Hooker 1 3/4 longtubes no A.I.R. PIPES. not sure what the part # is but I hope they fit. I have a Eagle stroker rod and I went to a small base circle, some grinding was required with a stock 400 block. Good Luck!

Last edited by JUAN J SANCHEZ; Dec 6, 2004 at 09:00 PM.
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Old Dec 6, 2004 | 09:59 PM
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chriswtx did you use straight or angle plug dart 215's
I have brodix track1 heads and they are angle plug...
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Old Dec 6, 2004 | 10:19 PM
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You should be able to get the 215s with angle plugs if you are going with Iron Eagles for the budget...
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Old Dec 6, 2004 | 11:11 PM
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USAsOnlyWay I was thinking about going with the Iron Eagles but I plan on 10.5-11:1 CR and want to run pump gas so I am going with the Pro 1's
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Old Dec 6, 2004 | 11:13 PM
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I was thinking about mabey going with a stock cast crank, does anyone know how much HP and TQ they will be able to withstand
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Old Dec 7, 2004 | 03:27 AM
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Default Cast Crank

Lingenfelter once said it wasn't the HP or Torque that mattered so much on the crank, but the RPMs. He was using normally asperated engines in his discussion, not blown or nitrous. So chill on those applications, but he was specific, that they SHOULDN't be used regularly over 7000 rpm. So I've always used that as a reference. He seemed to know what he was talking about.

Good luck.

Ken
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Old Dec 9, 2004 | 04:51 AM
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I'd go with a 4340 crank and H beam rods.
Some may say they aren't necessary but that's what I would do.
You can get Eagle from dynoflow in Vegas for $500 for the crank

Next time around I'm going to spend on the Crank for real made in USA, Hank the Crank, 42# $1200

Eagle and Scat are still Chinese even thought they say USA on the box.

Evan
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