FAQ |
Members List |
Social Groups |
Calendar |
Search |
Today's Posts |
#1
|
||||
|
||||
IA2A aluminum wet deck builds
finally got around to dropping my stuff off at machine shop yesterday. Machinist had a bunch of questions. I had talked to Bob C and he said cometics with the small water holes are doing quite well. Talked to Jeff V and he prefers dry decking and titan copper.
Its going to be a bracket motor 850-900 hp, what is currently being run on aluminum block 4.350 bore and 14:1 compression range. I have a set of wet deck wide ports i plan on using for the first season or two, and i could dry deck them if i go that route, and then i will uncork it and either have them worked up or put some heads that flow on there. thanks in advance.
__________________
1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction |
#2
|
||||
|
||||
May be a silly question. My IAll is not drilled but the heads are. Do you have to plug the head as well?
__________________
Jack Ferris RestoRacing LLC www.restoracing.com Sandy, UT --------------------------------------------------- |
#3
|
||||
|
||||
yes or you drill and make the block wet also, Frank said to use a 5/16'' bit i beleive, just need to make sure the hole matches your gasket location
__________________
1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction |
#4
|
||||
|
||||
Quote:
That's what Paul Carter did with mine to dry deck it. A lot of holes to weld in those heads and they had to be re-surfaced and made straight again. Then, he used copper gaskets and O-rings. So far, it works. I run water in the heads only, not the block. Jim
__________________
****'63 Tempest, 475" IAII, Wenzler Super Chief heads, converted to blown alcohol, Birdcatcher, Littlefield 10-71 high helix. Best pass to date: 7.67 @ 181.59 (1/4 mi.), 4.95 @ 143.67 (1/8 mi.), 1.18 (60 ft) 7.75 @ 178 pass: https://www.youtube.com/watch?v=Iez3...ature=youtu.be First seven second pass(7.98): https://wwwoutube.com/watch?v=DK17...ature=youtu.be Thanks to Paul Carter @ Koerner Racing Engines |
#5
|
||||
|
||||
I’m building a aluminum block for customer street car going to be turbocharged doing a wet deck not gonna get crazy on boost
__________________
2008KRE Q16 Winner 2014 atco raceway doorslammer winner 86 grand am tube car 8.95 @152 455 eheads solid flat tappet cam Hoffman Racing building and racing Pontiacs for 35 years |
#6
|
||||
|
||||
Hey Jeff
We have Jakes aluminum block wet decked. We plan to push 4-500 thru it also. Using Cometics also. I didn’t have time to pick it up yet for assembly. Been done for a while. Work is crazy busy. Brian
__________________
Boobs & bacon |
#7
|
||||
|
||||
No need to weld up the coolant holes, drill and tap them for pipe plugs and then get them surfaced, it's what I did to my factory heads and block. If you ever decide you want wet deck then just remove the plugs.
|
#8
|
||||
|
||||
Brian and Richie, you guys plan on using cometics? what bore?
__________________
1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction |
#9
|
||||
|
||||
Cometics block will be 4.250 bore
__________________
2008KRE Q16 Winner 2014 atco raceway doorslammer winner 86 grand am tube car 8.95 @152 455 eheads solid flat tappet cam Hoffman Racing building and racing Pontiacs for 35 years |
#10
|
||||
|
||||
4.350 bore and Cometics
Brian
__________________
Boobs & bacon |
#11
|
||||
|
||||
thanks guys, Richie, you prescribe to the 5/16'' cooling holes?
__________________
1969 carousel red firebird 455, richmond 5 speed 1964 540 gto 1971 lemans sport convertible 1972 Maverick under slow construction |
#12
|
||||
|
||||
Been using 1/4 on big bore stuff
__________________
2008KRE Q16 Winner 2014 atco raceway doorslammer winner 86 grand am tube car 8.95 @152 455 eheads solid flat tappet cam Hoffman Racing building and racing Pontiacs for 35 years |
#13
|
||||
|
||||
If you decide to dry deck, X2 on tapping for pipe plugs and install *aluminum* plugs. I used a high temp thread sealant on the plugs also.
Another method suggested to me was install a tapered press-in style plug? Either way, after plug is in place, have head surface machined flat. Good to go. In my case, this process took off enough of some of the plugs that they won’t be easily unscrewed. But I imagine wouldn’t be much trouble to drill back out if need be. As for whether to run wet or dry deck, I chose dry... and hope it was the right choice. I have an iron IA2. My choice was based on the potential for adding boost or nitrous later. Probably not much help. Just sharing.
__________________
Matt 70 GTO 400 4-speed "Turbos make no noise and leave the line like Baby Diarrhea!" - GTOGeorge |
#14
|
||||
|
||||
Jeff,
Dry deck it, external cooling lines work. Either plugs or welding the heads/block will be fine.
__________________
2023 Best ET Slip 60’ 1.224 330 3.186 1/8 4.784 MPH 152.07 1000 6.175 ET 7.347 MPH 189.92 Weight 3650 YouTube Channel --> https://www.youtube.com/channel/UC21...rWwgFdfTRqShGQ FaceBook Group --> https://www.facebook.com/groups/220092308823847/ |
#15
|
||||
|
||||
My block and Tigers are dry decked and plumbed from rear of heads to back of block. Seems to work real well. My block was never drilled and the heads have plugs in them
__________________
1965 TriPower GTO, 1967 GTO, 1969 GTO, 1969 Judge, 1972 GTO, 1977 Smokey and the Bandit, 1989 TA ProStreet, 1968 Firebird NHRA 10.90 racecar, 1963 Tempest S/Gas |
#16
|
|||
|
|||
I have a dry deck and reverse cooled on my turbo set up. I like it as its not messy when u need to pull out the heads and a big plus is you don't get any water in your cylinder on PA application incase your heads lifted.
|
Reply |
|
|