403 LS2 FD - LS7 Build for 2020!

[Esser]

How will you correct the intake angle to the heads?

[MPbdy]

We didn't try bolting it down, but I've read some people have similar mismatch and it just tightened up.  Otherwise I'll have our local shop cut it to the correct angle.  I didn't want to spend money on it until I knew if it would fit (or get reasonably close).

[Exidous]

I had to run three different length rods to get all the 2116 within +/- .035. something like 7.755 to 7.790".

[MPbdy]

I had to run three different length rods to get all the 2116 within +/- .035. something like 7.755 to 7.790".

I was ready for it, but very surprised at how consistent they were. I only need two lengths. I’m not sure if the heads had a valvejob done or if it’s factory but they were all the same on one head, and the intakes were off just a hair, but all the same on the other head.

[Exidous]

Nice. Mine were all over the place.

I'll be curious how much that intake effects the low end. As well as the top.

[MPbdy]

Weelllllll I got the last one in stock from VIS! They’ll drop it off today. Hopefully it does what I’m looking for. I don’t really want to cut my stock hood up, and I’ve wanted hood vents for a long time. Not stoked on losing the stock look, but I can always go back to stock.

They look good paint matched imo.

[Esser]

Who's FD in the last photo? I saw that car on the road a couple months ago near me. I can tell my the rear flares

[MPbdy]

No clue! I save pictures every once in a while for reference haha.

[MPbdy]

Well, she ran for the last time before the tear down.

Good news is the VIS hood is pretty cool, and fits ok. It’s not latched in the pictures but I could push the front of it down. The hood seems too short? By quite a bit. The bumper gap is going to be big. The gaps to the fender and the shape seem spot on. All I can think is to slot the hinges and pull in forward. It’s at least a half inch short to the headlights and bumper, and unfortunately the lines are perfect at the windshield. I’ll figure it out later.

The intake clears. The height is about 7” from the valley plate. Bad news is the throttle body sticks up an inch higher than the intake and there’s no way in hell it’ll fit.

I’ve moved on with life. Going to see what it takes to make an MSD atomic intake fit. Mark GNX7 has one on his car with my same Holley 105mm tb. With the extra clearance from the hood I don’t think I’ll have much struggle. Firewall clearance TBD I might need to shave the firewall lip.

Lots of work left to do just in turning wrenches and a pretty long list of “while you’re in there” things, but chipping away at it.

[Esser]

Looks good! On the hood I would loosen the bolts going into the hood on the hinges and the bolts going from the hinges to the body and pull it forward. I had to do this with my seibon. The gap at the rear is much less noticeable than the gap at the front bumper. You may also have to slide the headlight covers forward with it.

[kinger]

Going to see what it takes to make an MSD atomic intake fit. Mark GNX7 has one on his car with my same Holley 105mm tb. With the extra clearance from the hood I don’t think I’ll have much struggle. Firewall clearance TBD I might need to shave the firewall lip.

Lots of work left to do just in turning wrenches and a pretty long list of “while you’re in there” things, but chipping away at it.

Yay!  I will be doing this in 2 months so I will copy you 

I need to purchase a TB yet.  I didn't know Holley had a 105mm cable. 

[paul_3rdgen]

It doesn’t work for your car, sell it to me [emoji12]


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[MPbdy]

Looks good! On the hood I would loosen the bolts going into the hood on the hinges and the bolts going from the hinges to the body and pull it forward. I had to do this with my seibon. The gap at the rear is much less noticeable than the gap at the front bumper. You may also have to slide the headlight covers forward with it.

That makes sense. I've seen pictures that had the big gap like I'm going to have, and then I've seen some where the bumper and hood are almost touching.  I knew there had to be adjustment somewhere.  I said the same thing about the body lines at the windshield that matters much less.  The bumper gap is going to be fugly as is.  Luckily the headlight gap and the bumper gap seem pretty much the same so I'll just need it to come forward about a half an inch.  Are the hinge to body bolts under the fender, or can you get to them?

I'm pretty confident about the MSD with this hood.  Still not stoked to cut up my stock hood, so I'll see about making all this work.  I have plans to redo my bumpsteer and add some more compensation at the wheel end so if my engine needs to come down a little I know I can.  The hood fitting a 7" tall intake is very promising though.  We can actually fit pretty big intake manifolds in these cars, but the throttle body and intake duct are at a terrible pinch point since the hood is so short.

I didn't realize all my pictures uploaded sideways lol.

[MPbdy]

Going to see what it takes to make an MSD atomic intake fit. Mark GNX7 has one on his car with my same Holley 105mm tb. With the extra clearance from the hood I don’t think I’ll have much struggle. Firewall clearance TBD I might need to shave the firewall lip.

Lots of work left to do just in turning wrenches and a pretty long list of “while you’re in there” things, but chipping away at it.

Yay!  I will be doing this in 2 months so I will copy you 

I need to purchase a TB yet.  I didn't know Holley had a 105mm cable. 

It doesn’t work for your car, sell it to me [emoji12]


Sent from my iPhone using Tapatalk

It doesn’t work for your car, sell it to me [emoji12]


Sent from my iPhone using Tapatalk

I called VIS and they had one left in stock. I live right near their HQ, and they had a distributor they referred me to.  I had it in a couple days.  Not sure if you'll have the same service in Canada

Going to see what it takes to make an MSD atomic intake fit. Mark GNX7 has one on his car with my same Holley 105mm tb. With the extra clearance from the hood I don’t think I’ll have much struggle. Firewall clearance TBD I might need to shave the firewall lip.

Lots of work left to do just in turning wrenches and a pretty long list of “while you’re in there” things, but chipping away at it.

Yay!  I will be doing this in 2 months so I will copy you 

I need to purchase a TB yet.  I didn't know Holley had a 105mm cable. 

Yea it is this one.  I got it for not even half that much 2nd hand. Holy shit it has gone up in price! Lol.  Might as well get a motion raceworks or something, or just an el cheapo copycat.  Holley has some sniper branded ones, but you can probably get the same part for half as much off ebay or elsewhere.  You definitely want a 102mm+. 102 vs 105 is next to near the same.

https://www.holley.com/products/fuel_systems/fuel_injection/throttle_bodies/gm_throttle_bodies/parts/112-581

For that much money I'd 110% be going DBW.

[Esser]

You need to take the fenders off to get to the hinge bolts unfortunately