A couple friends came by to help me swap out the valve seals and then convert to MAP and switch to open ITBs.
To
run open throttle bodies, since the Silvertop uses MAF, I'll need to convert it
to MAP. When i got the car, the guy included a blacktop ECU, so I ordered
silvertop to blacktop jumper from Tweak'd Performance. It also came with a
jumper that connects the MAP and air temperature sensors to the old MAF sensor
plug. Since the silvertop doesn't have a vacuum collector like the blacktop
does, I picked up a Vibrant vacuum collector and some hoses and fittings. After
that, I ordered a set of SQ Engineering 100mm velocity stacks and a Pipercross
air filter and mounting plate. I noticed that Battle Garage had these green
velocity stacks for significantly less than the standard aluminum ones, soi
ordered them. I think they were listed that way as a mistake. Finally, I
bought a K&N vent filter since the vent tube isn't there to run to the
intake piping anymore.
After pulling the cams and valve hats, we
plugged in the spark plug air compressor fitting and turned on the air so we
could start removing the valve springs. We quickly noticed that cylinder wasn't
holding air and it was coming through the channel leading through the head from
the block, so that tells us that the rings are probably shot. We tried it for
another cylinder, and it was the same situation.Here area few pictures of the process
Here we pulled off the valve cover.
After removing the cam shaft caps
After pulling the shafts and valve caps.
So much for valve seals like the guy said... I'm still happy with what i have, but there's definitely more work to be done than I had anticipated.
So what's the plan then? I've always wanted a high revving engine: somewhere around 9-10k, so I'm planning out a 1.6L 7AGE build using my Silvertop head. I question whether i should see about going blacktop with it, but i don't think I can justify the cost considering i already have the silvertop.
I have located a 7AFE at a nearby auto wrecker and have been in contact with MRP about cost of a set of 136.6mm connecting rods. The hardest part will be deciding on what internals to go with and what compression ratio i want.
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