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8/14/11 1:55am - Original Message: 'Engine coming together'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 829
Got the heads on.  Next: lifters, pushrods, and rockers.  Since enough things have changed I need to ensure the stock size pushrods are the right size -- might be a little bit of experimentation req'd....




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1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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8/14/11 5:27am - Reply: 'Engine coming together'
rod7515 Lifetime Member
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Red Lion, PA - USA

Vette(s):
1974 White 350 Corvette, TH400 Automatic 1972 Tangerine /Go Mango Convertible 383 Stroker, 2004r Automatic

Joined: 10/27/2006
Posts: 1172
Motor looking really good. I see you have it all painted. You even taped around the freeze out plugs. The motor I just painted I forgot to tape them up and I painted over them. I like them better without paint. Are you dressing the motor up or using all the stock top end parts. Keep the pics coming its fun to see your progress.
Rodney


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8/14/11 8:27am - Reply: 'Engine coming together'
lukesvette Lifetime Member
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HOWELL, NJ - USA

Vette(s):
1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.

Joined: 5/18/2004
Posts: 6804
Looking good Dave. You'll be motoring around town before you know it!!Thumbs Up

Paul


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8/14/11 11:21am - Reply: 'Engine coming together'
Jaws79 Lifetime Member
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Sykesville, MD - USA

Vette(s):
1979 Corvette Coupe Corvette Light Blue Midnight Blue interior Mirrored Glass T-tops

Joined: 4/27/2008
Posts: 4211
Man, that is really going to be nice once you get it together! Best of luck!
 
Barry
 
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"Down on the Boardwalk...

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8/14/11 2:46pm - Reply: 'Engine coming together'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 829
Thanks for the encouraging words, guys.  Rodney - yeah, I painted the block and heads separately prior to ass'y.  It looks pretty good, but there's a bunch of touch up I need to do, especially on things like bolt heads.  I'll probably end up re-masking everything and spraying it again once the intake is on.  As for top end parts my goal is mostly black instead of chrome.  You have to use modern center bolt valve covers with the vortec heads.  The guy that sold me the heads also sold me some stock valve covers from a late 90's truck (where the heads came from).  I've gotten them cleaned up and primed, but I haven't painted them yet.  They'll be some shade of black, maybe that crinkle finish stuff.  I may even consider having them powder coated, but not sure how much that would cost.  I think they'll look pretty good when they're done.  They have raised ridges and even a little circular flat spot where the crossed flag badge (like one on an LT-1 or L-82) will fit.  As for air cleaner, I may use my stock unit, but I'm concerned that a stock '76 single snorkel will not get enough air.  I've also thought about keeping the base unit with the snorkel, but using a lid from a '73-'75 that will open up the top.  But, my best option may just be to go with an open element black unit that I've seen on E-bay.  I found a repo '69 350/350 air cleaner sticker for it, too.  Starting to get exciting!  

____________________________________

 

1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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8/14/11 5:18pm - Reply: 'Engine coming together'
Jaws79 Lifetime Member
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Sykesville, MD - USA

Vette(s):
1979 Corvette Coupe Corvette Light Blue Midnight Blue interior Mirrored Glass T-tops

Joined: 4/27/2008
Posts: 4211
The anticipation builds!  Just take your time and do it right! Resist that hurry up urge!
 
Barry
 
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8/14/11 11:59pm - Reply: 'Engine coming together'
rod7515 Lifetime Member
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Red Lion, PA - USA

Vette(s):
1974 White 350 Corvette, TH400 Automatic 1972 Tangerine /Go Mango Convertible 383 Stroker, 2004r Automatic

Joined: 10/27/2006
Posts: 1172
Dave,
Not sure what paint you used but if you are thinking about the black top end, I just sprayed my control arms and front springs with the POR15 epoxy paint and that stuff really sprayed great. It went on really smooth and very glossy. You could also go to a local parts house if you dont want to order POR15 paint and get a product called Chassis Saver (comes in silver and black). You will need to use a metal ready to prep the metal but you would be very happy with the results. I used a $15 dollar gun (harbor freight) to spray it. Keep the pics coming as you move forward. This group loves pics!
Keep up the good work, Lookin Good!
Rodney


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8/16/11 2:31am - Reply: 'Engine coming together'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 829
Thanks, Rodney.  I may consider that POR 15 option.  Guess I could buy a Harbor Freight spray gun, but that part has always scared me away -- so easy to just buy what you need in a rattle can.  I've had pretty good luck with Plasticote products on this project so far.  I'm also going to check with a local powder coat shop here in town - just for kicks.  

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1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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8/16/11 2:36am - Reply: 'Engine coming together'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 829
I think stock length pushrods are just what I need -- tip of roller is dead-center on valve stem.  My machinist said I'd probably be OK re-using the stockers, but with the 1.5 ratio rockers and stiffer springs, I think I'll opt for a new set.  




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1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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8/16/11 7:00am - Reply: 'Engine coming together'
lukesvette Lifetime Member
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HOWELL, NJ - USA

Vette(s):
1979, Targa Blue (72 Color), Pace Car rear spoiler, L88 hood, Dark blue factory interior, 525HP 406, HD 700R4, 370 gears,Steeroids, composite rear spring, TT IIs wrapped in T/A Radials.

Joined: 5/18/2004
Posts: 6804
Dave, if you want to stick with rattle cans, find a TSC "Tractor Supply" store and pick up some black semi-gloss implement paint. It's in a green can and made by Valspar - great stuff!! Most durable paint I ever purchased in spray cans. It's made for farm equipment so I think that explains the durability factor.

Paul

(duplicate post deleted)
Adams' Apple2011-08-16 05:23:10

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Veteran of Operation Iraqi Freedom
101st Airborne(AirAssault!)
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8/19/11 1:22pm - Reply: 'Engine coming together'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 224
Good afternoon all,
       If I may make a suggestion as to the painting of the block after you have the freeze plugs inserted.. I usually paint the block then insert the plugs,however there has been time it was before spraying the block...When this happens is when I coat the freeze plugs with Vaseline and when you are ready to place engine into car you can either wipe out of each plug or wait and when it is started and you season your cam and lifters( assuming you have flat tappet cam/lifters) and the heat of the engine(water temp 190 -200 degrees) will melt the Vaseline and will run off the block..
        Good luck and great choice of 062 Vortex heads as opposed to 906's which have a history of cracking in extreme use..
      Take care All.
     nosal1

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8/21/11 4:35pm - Reply: 'Re: Engine coming together'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 829
nosal1 said: Good afternoon all,
       If I may make a suggestion as to the painting of the block after you have the freeze plugs inserted.. I usually paint the block then insert the plugs,however there has been time it was before spraying the block...When this happens is when I coat the freeze plugs with Vaseline and when you are ready to place engine into car you can either wipe out of each plug or wait and when it is started and you season your cam and lifters( assuming you have flat tappet cam/lifters) and the heat of the engine(water temp 190 -200 degrees) will melt the Vaseline and will run off the block..
        Good luck and great choice of 062 Vortex heads as opposed to 906's which have a history of cracking in extreme use..
      Take care All.
     nosal1

Thanks for the vaseline suggestion -- I think I'll try it when I do my touch up painting.  Interesting comment about the 062 vs. 906 heads.  I thought the difference was the 906's had a more robust seat on the exhausts to prevent cracking.  The stuff I read about them was that they were designed for 3/4 ton and heavier trucks for hauling heavy loads.  Some info on the web said they don't flow as well as the 062's because of that.   But I hope you're right - I bought a set of 062's from an honest Craigslist seller and they both ended up having cracks in one or two exhaust seats (middle cylinders).  One of the heads was junk and the guy gave me my $$ back for that one.  The other one had a very small crack in one seat and my engine/head builder 
had no concerns about fixing it.  I got the replacement 062 from a local wholesaler and that one looked great.   I hope this plan works!  

____________________________________

 

1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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8/21/11 7:54pm - Reply: 'Re: Engine coming together'
Redwingvette Lifetime Member
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Waterford, MI - USA

Vette(s):
1973 Red coupe

Joined: 9/13/2002
Posts: 1674
Looks like it is going to be a nice build. Makes me want to pull my motor back out just so I can paint it again. Nothing looks better then a nice fresh paint job.

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Brian - NCM Lifetime Member
          
73 coupe L48, Flat-top pistons, Performer RPM Heads, Crane Cam and roller rockers, Holley 650 vac sec. Performer intake,
3.55 gear BTO 200-4R trans,
Leather seats, F-body seatbelts, Pioneer CD player
Magnaflow Exhuast System
Dewitt radiator and dual electric fans
Borgeson Steering box
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8/26/11 3:25pm - Reply: 'Re: Engine coming together'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 224

Dave the 906 and the 062 Vortex heads are from the same  family,however the majority of the 906 heads were cast/made in Mexico and the 062 were stateside cast. We have three sets of 906's sitting on the floor in the machine shop two with a crack between 3 and 5 or 4 and 6 cylinders exhaust valves,typically where the inferior casting is evident.The other head popped it's seat,so we can save it for someone.062's may pop a seat now and again,but not as often as the 906's Good luck on you build and happy motoring...Sal C 



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8/28/11 3:43pm - Reply: 'Re: Engine coming together'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 829
Thanks for the info - I think I had heard as well that the 906's were produced in Mexico.   Good to know that I've got the better castings.  

Got any recommendations for spark plugs for those bad boys?  It'll be about 9.4:1 CR.  I'm thinking AC Delco's, R44LTS - R42LTS, just not sure which. 


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1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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8/28/11 7:12pm - Reply: 'Re: Engine coming together'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 224

Dave,  I have used several plugs over the years (I test a lot of plugs ) and have gone back to the ones that GM has always used ....Go figure that they would know anything..If you are going to run the engine full bore all the time then AC 44T or TS are the ones to use.

A colder plug for high speed and hotter plug for in town with sporadic freeway/highway miles. If you run headers exhaust then Acell #576 (these are shorter plugs for use with Headers) equals the AC 45TS plug and what I use in my Vette and all the 383 Strokers I have built here in the neighborhood.If you have the HEI Chevy distributor(large cap) then set gap at .045,if you use something like Pertronix (a converted points GM distributor) then set the gap at .042..If you have any other queries,please do not hesitate to ask..

Take care........Sal C



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8/29/11 2:28am - Reply: 'Re: Engine coming together'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 829
Thanks, Sal.  I think I'm going to go with AC R44LTS, gapped at .045 -- assuming that's the same thing you're recommending.  (LTS = Long tapered seat, Vortecs need the longer reach I guess).  That's the same plug recommended for the 330 HP GMPP crate motor with vortecs.  Thanks again for the help!  

____________________________________

 

1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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8/29/11 4:30am - Reply: 'Re: Engine coming together'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 224

Dave are the heads on or off the block? Do you have flat top pistons with 2 or 4 eyelids? The LTS plugs are used with recessed pistons..Please check the depth of the plug into the cylinder..You don't want the plug to extend so far into the hole to where the piston slams the plug..The plug is the same as the 44T or TS,however longer designed to go deeper into the cyl. due to recessed top of pistons of late model engines..  Take care.... Sal C 



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8/29/11 11:49pm - Reply: 'Re: Engine coming together'
daveo76
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Vancouver, WA - USA

Vette(s):
1976 Silver/Firethorn. L48, 4spd. Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.

Joined: 8/25/2005
Posts: 829
Sal, my heads are on the block already.  But I do know that I have slightly recessed pistons -- about 10 cc's or so.  They were needed to get my CR down to a reasonable 9.4 or so due to the 64 cc combustion chambers.  They also have four valve reliefs.   Assuming I'll be OK with the longer (LTS) plugs in that case.   Thanks, Dave

____________________________________

 

1976 Silver/Firethorn.  L48, 4spd.  Original 2 bolt, vortec heads, 9.4:1 CR, Speed Pro Cam: 224/224@0.050, 112 LSA, Eagle Steel Crank.
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8/30/11 5:04am - Reply: 'Re: Engine coming together'
nosal1 Gold Member
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Dunedin, FL - USA

Vette(s):
1980 Corvette Torch Red with Gold metallic 370HP/350 CU.IN.Turbo 350 w/shift kit.Originally CA.Car with 305 CU.IN.

Joined: 3/21/2006
Posts: 224

Good deal Dave you will be fine with the longer plugs...Take care and have a great day.. Sal C



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