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#21
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These things are light. We were moving a spare 400 block that came with the 1974 Firebird I bought for my 15 yo kid. He was helping as we moved it with a dolly. After we had it lined up with some other spare blocks I have, I said watch this as I lifted the covered IA-IIA block by myself and put it down a foot closer to the other blocks. I lifted it and moved it several times until I had it neatly lined up with the other spare blocks. His jaw dropped and he said "How did you do that". I explained it was a special aluminum racing block that would be used as our secret weapon one day.
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1969 Firebird, Tx3-455/468 machined by CVMS E-heads by Dave Wilcox/Comp Cams 300B-6 flat solid 850DP on E-85 by Eric Niefert/T2 1" plastic spacer T-400/PTC 4000/390's/30x9 Hoosier radial slicks,#3400 1.38 60' 6.32 @ 108 MPH at Northeast Dragway NC 5/23/15 (9th pass on new engine) https://m.youtube.com/watch?v=ePCu2v...ature=youtu.be 1.37 60' 6.26 @ 109 half track, 9.86 @ 136 1/4 mile, #3350 11/26/16 at Richmond Dragway (125th pass on new engine) |
#22
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No. We have our system worked out to where the bearings live. The key is the additional front feed.
To keep the costs reasonable, we had to stick with their normal CNC programming. All of the beef improvements were casting changes. The foundry that they work with was more than willing to stretch the envelope. Eric
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"Everybody has a plan until they get punched in the mouth" noted philosopher Mike Tyson Life begins at the end of your comfort zone. “The mind, once stretched by a new idea, never returns to its original dimensions.” |
#23
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Very Nice!
I should have mine in a couple weeks. |
#24
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Looking good!
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*** THE BIG BRACE is here *** |
#25
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I put the solid aluminum block on a digital bathroom scale today. Should be fairly accurate. The block with caps, studs and nuts weighed 148.2 Lbs. I had a 1965 389 laying around the shop, no main caps or bolts. For reference, it weighed 165 lbs. I do not know what a water jacket IA II in aluminum or iron weighs. If you know post it up.
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#26
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Quote:
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#27
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Quote:
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1963 Cat SD Clone (old school) streeter 1964 GTO post coupe, tripower, 4speed (build) 1965 GTO 389 tripower, 4 speed, driver 1966 GTO dragcar 1966 GTO Ragtop 1969 Tempest ET clone street/strip 1969 GTO Judge RA lll, auto 1969 GTO limelight Conv. 4speed go and show (sold) 1970 GP SSJ 1970 GTO barn find..TLB…390 horse?….yeh, 390 1972 GTO 455 HO, 4 speed, (build) 1973 Grand Safari wagon, 700hp stoplight sleeper 525ci DCI & 609ci LM V head builds |
#28
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Mine with water jackets is 147 lbs. If my scale is correct.
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#29
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I'm at #148 with five main caps & hardware. I'll drag out a OEM 455 next.
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1969 Firebird, Tx3-455/468 machined by CVMS E-heads by Dave Wilcox/Comp Cams 300B-6 flat solid 850DP on E-85 by Eric Niefert/T2 1" plastic spacer T-400/PTC 4000/390's/30x9 Hoosier radial slicks,#3400 1.38 60' 6.32 @ 108 MPH at Northeast Dragway NC 5/23/15 (9th pass on new engine) https://m.youtube.com/watch?v=ePCu2v...ature=youtu.be 1.37 60' 6.26 @ 109 half track, 9.86 @ 136 1/4 mile, #3350 11/26/16 at Richmond Dragway (125th pass on new engine) |
#30
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I should have mentioned our block does not have sleeves yet, probably adding 10 or so lbs. As far as deck height, I have not had a chance to measure it yet. I assume it will be in the 10.230 range. Frank or Bob could speak to the short/tall deck possibilities. Without water, it would seem deck height changes would be much less trouble as far as the core box, but I am not a foundry expert by any stretch. Give them a call.
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#31
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I will bet a bit of money that when you measure it you will find the block deck height is 10.300" vs 10.230" range. Want to bet?
Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#32
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1971 455 2 bolt main OEM block, #186.
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1969 Firebird, Tx3-455/468 machined by CVMS E-heads by Dave Wilcox/Comp Cams 300B-6 flat solid 850DP on E-85 by Eric Niefert/T2 1" plastic spacer T-400/PTC 4000/390's/30x9 Hoosier radial slicks,#3400 1.38 60' 6.32 @ 108 MPH at Northeast Dragway NC 5/23/15 (9th pass on new engine) https://m.youtube.com/watch?v=ePCu2v...ature=youtu.be 1.37 60' 6.26 @ 109 half track, 9.86 @ 136 1/4 mile, #3350 11/26/16 at Richmond Dragway (125th pass on new engine) |
#33
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I'm using an old bathroom scale that is fairly accurate. It's not digital nor is my shop floor true. I expected the OEM 455 to be heavier, but my scale read #186. I'm done moving heavy **** for the night!
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1969 Firebird, Tx3-455/468 machined by CVMS E-heads by Dave Wilcox/Comp Cams 300B-6 flat solid 850DP on E-85 by Eric Niefert/T2 1" plastic spacer T-400/PTC 4000/390's/30x9 Hoosier radial slicks,#3400 1.38 60' 6.32 @ 108 MPH at Northeast Dragway NC 5/23/15 (9th pass on new engine) https://m.youtube.com/watch?v=ePCu2v...ature=youtu.be 1.37 60' 6.26 @ 109 half track, 9.86 @ 136 1/4 mile, #3350 11/26/16 at Richmond Dragway (125th pass on new engine) |
#34
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Quote:
__________________
1963 Cat SD Clone (old school) streeter 1964 GTO post coupe, tripower, 4speed (build) 1965 GTO 389 tripower, 4 speed, driver 1966 GTO dragcar 1966 GTO Ragtop 1969 Tempest ET clone street/strip 1969 GTO Judge RA lll, auto 1969 GTO limelight Conv. 4speed go and show (sold) 1970 GP SSJ 1970 GTO barn find..TLB…390 horse?….yeh, 390 1972 GTO 455 HO, 4 speed, (build) 1973 Grand Safari wagon, 700hp stoplight sleeper 525ci DCI & 609ci LM V head builds |
#35
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We needed the aluminum block specifically to make it easy to service/replace sleeves at the race track. Having a "cool bore" type aluminum block was never in the thought process. I know to run directly on aluminum like a Vega, some Honda's, and some Mercedes, the block is cast from a specific high silicon aluminum alloy. Then the the bore surface is etched to remove the aluminum from the surface and expose the silicon for the rings to run on. Some of the coating experts can possibly chime in on the possibility of surface treating the bores.
For our nitro application, cylinder damage IS going to happen. Saving the block and getting it back in service fast was a major driver in our change to this block. The additional benefits are better cooling, elongation without cracking, thicker cross-sections throughout. |
#36
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Didn't mean to get on another pig tail, ...yep sleeveless would be a no-no in your application, just thought I would pick some minds....
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1963 Cat SD Clone (old school) streeter 1964 GTO post coupe, tripower, 4speed (build) 1965 GTO 389 tripower, 4 speed, driver 1966 GTO dragcar 1966 GTO Ragtop 1969 Tempest ET clone street/strip 1969 GTO Judge RA lll, auto 1969 GTO limelight Conv. 4speed go and show (sold) 1970 GP SSJ 1970 GTO barn find..TLB…390 horse?….yeh, 390 1972 GTO 455 HO, 4 speed, (build) 1973 Grand Safari wagon, 700hp stoplight sleeper 525ci DCI & 609ci LM V head builds |
#37
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I think they advertise 10.240". I will measure mine when I get it. |
#38
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You will probably have to machine your block some to get to the 10.240" deck height number. Those 4 Blocks have the "Palbykin Mod" capability built into them. Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
#39
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Tom, I will install the precision bar and get accurate 4-corner deck heigh measurements on Monday. Have to get the car ready for a race this weekend. If you don't mind sharing the secret, what is this mysterious modification you are referring to? I don't want to mill off some modification that may possibly benefit our engine build. Thanks.
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#40
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PM to you.
Tom V.
__________________
"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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