Looks good, are you going to install the four corner coolant bypass hoses? Watch that composite intake for coolant leaks into the intake valley, running the bypass hoses keeps the coolant from deadheading in the back of the intake
427 SBC
- Thread starter 87 supreme
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Fox80 said:
I couldn't agree more on running rear cooling, I set up all my SBC and BBC like that and before it became common I used to modify my aluminum intakes for it then reblast them so it looked untampered.
No I wasn't going to run a 4 corner coolant bypass, but now I'm looking into it. That afr txr intake fits those 220 like a glove, and it has long separate runners, otta make for some good torque numbers.
I would plumb up the rear corners, it's simple and cheap to do, and composite intakes warp or crack in the rear corners from the steam/hot spot created without it, I would also put a stud girdle on it, aluminum heads with the spring pressure it looks like them springs have is hard on the stud threads, again pretty cheap insurance
Nice build that engine should be bad *ss! What did you do with the other intake manifold? If you still have it I'm interested. IF it's gone would you still have the make and part number? Good luck with your build!
The four corner coolant will be installed have the parts ordered, stud girdle did cross my mind. Thanks for all the good advice but damn it's getting expensive. 
In my opinion you have reached the "protect the investment" mode now, with the amount of money it appears you have in that motor it's time to make sure some little thing won't destroy it all. Now you can't prevent everything, but things like lifter valley screens, stud girdles, "rev kits" on roller cams can help prevent a failure or at least keep a failure contained to that area. IMO if you have a roller cam with a agressive ramp up or more than 115 lbs closed valve seat pressure a stud girdle is a must have, ARP rocker studs are tough but they will still break right at the radius above the hex.
Fox80 I like what your saying and your right, at this point in the build whats a couple extra bucks for some peace of mind. I'm 31 yrs old and this is by far the baddest engine i've ever built. I don't know all the tricks of the trade and thankfully for me theirs folks like you on this board who are willing to help a guy out. I'll be ordering a stud girdle soon. I did take my time with setting up my valvetrain adj guide plates, proper rocker arm geometry, push rod length and a good set of 7/16 stud comp ultra pro magnum 1.6 rocker arms and arp polylocks. However the girdle will only make things better. Thanks again
A word from experience do not get the "u-bolt" style girdle, get a two piece aluminum style from Comp,Crane,etc. It sounds like you have done your homework and used quality components, I am only a couple years older than you and I know the feeling you get as you near the end of a build, but you need to make sure you check and double check every little thing before you fire it. I have seen more than one motor break on the dyno from a simple thing over looked.
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