Home | Register | Login | Contact Us

 
Auto Math
Classifieds
Forum
Gallery
Games
Garage
Tech Articles
Utilites
 
FAQFAQ    SearchSearch    RegisterRegister    Log inLog in    Log in to check your private messagesLog in to check your private messages    Forum Subscriptions1/4 Mile Table 

opinions needed. Best factory cast BBC intake.
Goto page Previous  1, 2, 3
 
Post new topic   Reply to topic    SMOKEmUP.com Forum Index -> Chevy - Big Block
View previous topic :: View next topic  
Author Message
seventy468
Member


Joined: 13 Oct 2008
Posts: 92
Location: Indiana
2674.60 points



PostPosted: Wed Apr 07, 2010 3:31 am    Post subject: Reply with quote

correct. the intake that I am in need of will be going onto a tall deck 427. I understand the original tall deck intakes were by no means performance. I am trying to stay away from using spacers.. which is going to be tough, unless they make a cast spacer?? anyone know? What are the chances of taking a old td cast manifold... cutting it up and fitting/welding/brazing/whatever it takes, to a more high perf. std deck manifold... then blending it all on the outside to make it look fact. and then you could match the insides as well.... A lot of work ... most likely... practical.. maybe not... but would it work???
Back to top
View user's profile Send private message
Big Dave
Moderator


Joined: 04 Dec 2005
Posts: 2547
Location: Tampa Florida
116113.74 points



PostPosted: Thu Apr 08, 2010 12:21 am    Post subject: Reply with quote

Cast iron can be welded but it takes a skilled (retired or about to) welder, nickel rods, and an oven to heat and quench the casting to do it.Along with a big rose bud and a lot of gas to keep it at heat while it is being welded. Few know how and those that do know enough to not want to get involved with the process. About the only place I know of that does it any more is a dry dock/ship repair facility where you have to make do with what ever the tide brings in.

What you are desribing is porting work; which can be done (all you need is an air powered die grinder or two, a lot of sanding rolls, and a set of carbide burs, along with a couple of cans of epoxy).

Big Dave
Back to top
View user's profile Send private message
seventy468
Member


Joined: 13 Oct 2008
Posts: 92
Location: Indiana
2674.60 points



PostPosted: Thu Apr 08, 2010 11:44 pm    Post subject: Reply with quote

well im still undecided on what im going to do intake wise (havent tried to get a hold of mercruiser either, but now focusing on the exh. manifolds what are a set of these corvette manifolds (3856301 LH and 3856302 RH) running these days? I have tried a quick search with no luck so I assume IF I can find them they will cost me dearly. Good news is I can use motor plates so those manifolds should work fine for me.
Back to top
View user's profile Send private message
seventy468
Member


Joined: 13 Oct 2008
Posts: 92
Location: Indiana
2674.60 points



PostPosted: Fri Apr 09, 2010 8:17 pm    Post subject: Reply with quote

I was also told someone makes a intake adapter (for the tall 10.2/9.8 deck difference) that went from oval port to square port... any truth behind that? I am now planning find a standard deck height intake and run spacers... put some silicone over and paint and the untrained eye wont even know... hopefully sarcastic eye roll
Back to top
View user's profile Send private message
87IrocTim
Member


Joined: 10 Jan 2006
Posts: 430

16005.22 points



PostPosted: Sat Apr 10, 2010 5:09 am    Post subject: Reply with quote

im pretty sure this started out as a tall deck talk which is why i mentioned my manifold. like previously mentioned, run spacers and you can run any intake. buy a tall deck intake and most likely it is a single plane race manifold. i just happen to have a factory tall deck intake, which make lots of torque but not much power above 3500rpm.
Back to top
View user's profile Send private message
seventy468
Member


Joined: 13 Oct 2008
Posts: 92
Location: Indiana
2674.60 points



PostPosted: Sat Apr 10, 2010 9:16 am    Post subject: Reply with quote

well what if someone had access to a mill? A friend of mine has gotten real good at taking intake like that and making single planes out of them. They aren't the prettiest but with a carb on, you could never tell. What kind of carb flange is on it?
Back to top
View user's profile Send private message
87IrocTim
Member


Joined: 10 Jan 2006
Posts: 430

16005.22 points



PostPosted: Sat Apr 10, 2010 10:02 pm    Post subject: Reply with quote

what aggravates me is where i work, not only is NiCu weld wire readily available, also the heatoing strips and tig welders to do the job correctly, but there is no way i could over sneak an intake manifold into there. its one big tease.
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    SMOKEmUP.com Forum Index -> Chevy - Big Block All times are GMT - 5 Hours
Goto page Previous  1, 2, 3
Page 3 of 3

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
Home | Contact Us | Automath | Cam Files | Dyno Search | Forum | Garage | Picture Gallery | Reaction Timer

Copyright 1997-2014 SMOKEmUP.com All rights reserved.
Advertising Info     Disclaimer     Privacy Policy