I had a gasket give way on one of the block off plates on the torker 455 intake manifold on my boat (olds 455). When I tried to loosen the bolt, SNAP... F**K!
Then I tried to drill it out, and use an easy out on it, when SNAP the bit broke off inside the bolt... lol I can't seem to drill out the drill bit, it's pretty tough.
1. Can you recommend any other way of extracting the bolt? The manifold is already off so I could take it to a shop I suppose.
2. It's in pretty crappy shape so I was going to buy another one, but auto parts guy said I don't need a torker, that a performer would do fine. The price difference isn't that significant, and I'm running stock heads, cam etc....
That sounds like a plan. What's that port for anyway?
I'm pretty sure that is an EGR port...(Exhaust gas recirculation).....A machine shop, not necessarily an automotive type, can cut the easy out and remaining bolt out with a Carbide end mill. You may have to increase the bolt size afterwards, but you should be able to save the intake......I could do it for you, but my mill is in Bullhead and you should be able to find some one in your area.....Ray
That port is for cars, allows heat from exhaust gases to warm what I believe was a choke mechanism (or more likely EGR port as Moneypitt stated). You can block it off entirely from both sides of the intake then just reattach your plate with one bolt for cosmetic reasons. It's kinda backyard, but you can wad up and stuff foil in those 2 holes and finish off with JB weld. To clean that intake, buy some Eagle 1 Mag Wheel cleaner for unfinished aluminim soak, rinse, repeat, soak, rinse, repeat until your happy, works really well, might need a little scrub brush action, but not much if any.
The mounting bolts are in real bad shape. Can anybody tell me what size to buy? I can't seem to find them on summit, but maybe the auto parts store has em. I'd like to go with allen heads cause two of the hex head bolts were damn near impossible to get a socket on.
toss the turkey tray in the trash, or use it to cook a turkey, but it has no place in your engine. get some regular type intake gaskets and use high tack around the ports, and silicone (black) under the intake at the front and back of block. the block off plates sometimes come with a good set of gaskets which are basically tin inserts. or you can try and find some better/thicker ones. either way you want to block the exhaust gases coming from the valve port from entering the crossover port under the intake. and yes inspect that crossover closely. they are prone to crack. (and a bitch to weld on a used intake) lots of cleaning.