LT1 intake conversion (distributor ?'s)
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 2,158
Likes: 9
From: N.E. WA
LT1 intake conversion (distributor ?'s)
When you convert to a LT1 intake on a L98 you need to go to a small cap hei. My question is this. How did you do the wiring? The two distributors have different connectors. I know that accel makes a harness, but it is about $50-60. How did you do yours? I have one that is going in a Jeep and I am doing one on my 91 corvette as well. TIA
Le Mans Master
Joined: Jan 2003
Posts: 8,596
Likes: 19
From: Portland Oregon
Re: LT1 intake conversion (ANTI VENOM)
NAPA and AC Delco has pigtail harness connectors available to make the connections to the distributor and the remote mounted coil. If you need you can give me a call at the shop and I can get you the AC Delco pigtail part numbers.
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 2,158
Likes: 9
From: N.E. WA
Re: LT1 intake conversion (tjwong)
Hey Tom, I probably will have to call you about that. I will also need the ecm connectors for a Syclone. I decided to go with the 7749 for the turbo. I'll also probably need to get with you on the peak and hold drivers. Can you I'm me the number? Thanks Tom!!!
Burning Brakes
Joined: Jan 2001
Posts: 1,169
Likes: 0
From: Manhattan
Re: LT1 intake conversion (ANTI VENOM)
I have read of a couple of cases where the stock distributor is used in the C4. The egr on the back of the intake needs to be completely ground away. From what i can tell, the egr port is seperate from the intake port.
YMMV, but you may want to check if your stock dist fits before you go throught the expense of converting.
YMMV, but you may want to check if your stock dist fits before you go throught the expense of converting.
Drifting
Joined: Mar 2002
Posts: 1,251
Likes: 2
From: Thomson Georgia
Re: LT1 intake conversion (Raistlin)
The EGR is essentially separate from the intake, BUT it has an opening in each runner and 2 3/8's+ openings, one behind each throttle bore. You can block the holes in the runners by taking the plugs out of the base and filling the drilled holes or plugging them with an 1/8 plug. the ones behind the throttle bores are more of a pain. I TIGged them closed and the runners also. Also when you remove all of the EGR stuff off the back, you leave a 1/2 x 1-3/4 slot that has to be filled. Don't grind too far on the back of the plenum or you'll cut into it. Once the EGR is gone, there is enough room to put the regular distributor back in ... once the hole for the dist shaft is made. It is a good bit of work. Then you have to enlarge the throttle bores to 58mm from about 48mm.
Thread Starter
Melting Slicks
Joined: Oct 2000
Posts: 2,158
Likes: 9
From: N.E. WA
Re: LT1 intake conversion (johnnyevans)
Well, I contemplated grinding off the egr bosses, but knew I would need to do some plugging/welding. I don't have a tig, so I thought that the distributor conversion may be easier for me. I already have the distributor hole in the manifold and just need to decide which route I want to go! Thanks for info.
Drifting
Joined: Mar 2002
Posts: 1,251
Likes: 2
From: Thomson Georgia
Re: LT1 intake conversion (ANTI VENOM)
NP, the mod for the distributor wiring is no problem. You can buy the stuff new or you can go to the junkyard and cut what you need, maybe even pick up that heated O2 sensor while you're there. It's wire for wire, a soldering iron, some heat shrink and you are plug and play. V6 or V8 stuff is the same, Citations are good donor cars for stuff like that. The ignition coils are the same (I'll hear crap about that), I have noticed no difference in coils, and others who've done the same are the same. If you need colors for the wires, it's almost a match wire for wire, send me the info and I'll match for you.
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