Bought a donor car with an Ecotec & auto. Planned to swap in the Ecotec into my '02 (2200) 5spd car. Bought a new Ecotec 5spd trans, blah, blah, etc. Got the Fidanza flywheel. 2200 uses a fine thread, Eco uses a standard thread, so I didn't have bolts to mount the Fidanza to the Eco. Went to the GM parts dealer, had him look them up. Told me three days. Not being one who likes to wait, I asked what the size of the bolt was to go get six local. He gave me 10mm X 1.5 X 16.
Went to Fastenal and bought some grade 8 bolts matching the size.
Turns out, I think he gave me the exact size flex plate auto bolts I already had. Too short to mount a flywheel with. I went to NAPA and picked up a set of 10mm X 1.5 X 25. Threads seam a little tight but so do the ones that came out with the flex plate. Just longer. Now my problem is I don't have a set of six bolts to mount the pressure plate to the tabs on the flywheel. Fastenal didn't have a bolt to match it and said they seemed to be a 9/32, but they don't make a grade 8 9/32 bolt. He suggested tapping it out to a 5/16. Don't want to do that.
Long story short, I need bolt sizes for the flywheel to crank bolts and the pressure plate to flywheel bolts. I know some of you have done this swap, but I think all of you have used a 5spd Eco engine. Some one please help. I'm somewhat mechanicly capable, but right now I feel dumb. Did I take a wrong turn somewhere?
cant help ya i ordered mine from the dealer.... i didnt mind waiting.... didnt keep my old ones either....
Don't happen to remember the size either?
Found the right flywheel to crank bolts. Now I need pressure plate bolts.
Well, I just found this out over the weekend. To save someone else the hassle of asking after not getting a response while searching (if that happens) the bolt size is: 10mm (width) x 1.25 mm (thread pitch). I'm not sure of the length, however.
Vitamin E (AKA Eddie) wrote:Found the right flywheel to crank bolts. Now I need pressure plate bolts.
btw, did you get them through GM? if so, got a part number? How about a measurement the length?
thanks
muffin wrote:Well, I just found this out over the weekend. To save someone else the hassle of asking after not getting a response while searching (if that happens) the bolt size is: 10mm (width) x 1.25 mm (thread pitch). I'm not sure of the length, however.
10mm X 1.25 X 25 i believe
Pressure plate bolts are 7mm X 1.0 X 20
Just make sure they are Grade 8 or higher.
hmm... do you have any way to measure the bolts from base of the threads (just below the hex head) to the end of the bolt?
basically the blue area:
=======| <--- that's the bolt, hex head facing out
I'm trying to figure out if part number
ARP-203-2802 from
Summit Racing will work. The bolts are 10mm x 1.25mm x 1.05 inches
25mm = 0.98 inches, so I think I'd be fine providing there is enough clearance for the head of the bolt.
