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Good tips. Love the aluminium spray... I'd be very grateful if you've got details.
Thanks very much. Engine looks good btw
As I said they look a little grimy in that pic after fitting them, but cleaned up ok with some degreaser. The company I used was Avanti Engineering in Tipton ( on 0121 557 1153.) They charged £30.00 (plus carriage to send them back). I took them there personally & they did them in a morning for me, but I had arranged to go there first. They shotblast the headers first & then spray on the molten aluminium. I had a set like this on my '55 Chevy & it lasted really well with no maintenence required.
Here's a video of how it's done:-
http://www.youtube.com/watch?v=e_QrrVWet4M
Here's something I posted on another forum about this:-
Following on from my previous thread on header coatings,I thought I'd let you know how I got on with Avanti Engineering in Tipton ( on 0121 557 1153.) I rang them up for a quote to hot ali spray a pair of headers for my small block. The guy quoted me £30.00 plus carriage to send them back to me if I were to post them to them. I arranged to take them personally as they said they could do them in one day, I also took a pair of Chrysler headers for my mate, (they'd agreed to do them as well).
I got to their premises at 9.15am explained what I was after & left them with them. At 1.00 pm I get a phone call to say that they were ready for collection. When I got there they were sitting on the floor wrapped up ready. They'd shot blasted them & given them 4-5 coats of hot ali & were absolutely cock on. Totally covered even down in between the tubes where they enter the collectors, the total cost?......... £30.00. The Chrysler ones were a few quid dearer as they were very badly pitted & bigger) Considering I'd been quoted over £200.00 from various companies, to say I'm well chuffed is an understatement.
They also do stainless, bronze & metal spraying, so if you need a metal surface building up before machining to its original spec then they can do that also, hth ......Nige