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Thread: how does this shortblock sound?
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10-13-2008, 11:40 AM #11
ok thanks guys, i dont understand this stuff. the link that i posted is the block that i bought. he sold it to his friend who had it rebuilt to raise the compression and i just bought it for 1700. i would like to keep it pump gas so what should i do to it? thanks
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10-13-2008, 11:53 AM #12Long Live the Opti
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- Offline
- Join Date
- Sep 2008
- Name
- Sean
- Vehicle
- 1999 Twin Turbo Corvette
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- Fort Wayne, IN
- Posts
- 12,072
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10-13-2008, 12:00 PM #13
it doesnt have any heads or intake right now, just the block. i would prefer not to have to touch the block so any suggestions on heads and stuff?
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10-13-2008, 12:31 PM #14
Its not clear what you have an what you dont...the OP has a complete setup with heads.
So you bought the shortblock from that sale ad? You got the rotating assembly as well (crank, rods, pistons)? Please describe what you have so we can help.
If the setup requires a 64cc head to get 12.1CR, you're going to have a hard time keeping it on pump gas without pulling timing to avoid detonation. The car will run fine like this but when timing is pulled...so is some of the power.
7.10ET 88mph 1/8th (old setup)
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10-13-2008, 12:36 PM #15
sorry for the confusion. i bought the shortblock which has everything that i posted in the first page. the link that i posted is what the previous owner was running with. he also had it converted to a carb, i want to go back to fuel injected.
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10-13-2008, 12:55 PM #16
7.10ET 88mph 1/8th (old setup)
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10-13-2008, 01:01 PM #17
sorry i will try again, he sold the motor to his friend who had it rebuilt to a 385 and used different pistons, i guess. the list of specs. on the first page is what im getting, the link that i posted was what it used to be i guess. thanks and sorry for being so ignorant about all of this stuff
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10-13-2008, 01:04 PM #18
yes the block is already built and ready to go minus the topend and heads
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10-13-2008, 01:15 PM #19
Whew...what a long road that was.
No big deal...those pistons are made for a larger combustion chamber. You will have to have aftermarket heads no doubt. I went with AFRs for my setup and they can get the chamber just about any size you need it (up to 75cc I believe). I think most would suggest lowering the compression...for pump gas. Have a set of AFRs made with a slightly bigger chamber.
LT4 intake or single plane are going to be your intake options. Both intakes will work with aftermarket heads with some modifications. The single plane is going to cost around 1500 minimum to get it on the car, the LT4 intake would certainly be a lower cost direction....just depends on what you want to do.
7.10ET 88mph 1/8th (old setup)
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10-13-2008, 03:29 PM #20
Like sean said you need a bigger chamber for that setup. And I doubt thats gona hold 300hp hit for very long.
Building the LTgun.
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