Monza Wagon with an 5.3/ intakes ??
Thread Starter
On The Tree
Joined: Aug 2010
Posts: 143
Likes: 0
From: Eagle Mountain, Utah
Monza Wagon with an 5.3/ intakes ?? Hey All, I've just started a new project, a Pro touring '78 Monza station Wagon with a 5.3 swap. I'm looking for a few more ponies but don't care to get crazy, this car will be a simple daily driver and I'll autocross it when I can. Decent power + incredible gas mileage is more important than insane hp numbers.
Even a stock 5.3 would likely put this lightweight car in the 13,s which is fine with me. I will be running a cowl induction 'glass hood. Power upgrades will include headers and maybe a mild cam. I was looking at intake options and had a question-
What's the difference between a real Trailblazer SS intake and a normal truck intake that looks like it? I've seen a few on ebay that says "(fits Trailblazer SS)" but are cheap ?? I've seen 3 or 4 different part numbers, is the 12620308 accurate for the TBSS?
http://www.ebay.com/itm/TrailBlazer-...p=mtr#viTabs_0
OR this one
http://www.ebay.com/itm/INTAKE-MANIF...lXxv9s&vxp=mtr
Thanks!!
Even a stock 5.3 would likely put this lightweight car in the 13,s which is fine with me. I will be running a cowl induction 'glass hood. Power upgrades will include headers and maybe a mild cam. I was looking at intake options and had a question-
What's the difference between a real Trailblazer SS intake and a normal truck intake that looks like it? I've seen a few on ebay that says "(fits Trailblazer SS)" but are cheap ?? I've seen 3 or 4 different part numbers, is the 12620308 accurate for the TBSS?
http://www.ebay.com/itm/TrailBlazer-...p=mtr#viTabs_0
OR this one
http://www.ebay.com/itm/INTAKE-MANIF...lXxv9s&vxp=mtr
Thanks!!
Andrew
Thread Starter
On The Tree
Joined: Aug 2010
Posts: 143
Likes: 0
From: Eagle Mountain, Utah
I agree they look the same on the outside, but yet people charge a whole bunch more for an intake that came off a 6.0 Trailblazer SS. I also see different part numbers for the main intake so I'm wondering if port volume or runner length is different or something?
Maybe it's just in the bolt on parts- injectors and throttle body size?
HR magazine says the Trailblazer SS intake flowed better hp and TQ than an LS1 or earlier truck intake and better than a couple aftermarket intakes as well. If they're the same internally seems it would be a good idea to nab one off a 4.8 or 5.3 for cheap and call it a day. I just want to make sure that I'm spending money on a viable upgrade if I were to buy an average later truck intake to replace my earlier truck intake.
Thanks again for your input!
Maybe it's just in the bolt on parts- injectors and throttle body size?
HR magazine says the Trailblazer SS intake flowed better hp and TQ than an LS1 or earlier truck intake and better than a couple aftermarket intakes as well. If they're the same internally seems it would be a good idea to nab one off a 4.8 or 5.3 for cheap and call it a day. I just want to make sure that I'm spending money on a viable upgrade if I were to buy an average later truck intake to replace my earlier truck intake.
Thanks again for your input!
Last edited by SRDart; Feb 28, 2017 at 05:45 PM.
I agree they look the same on the outside, but yet people charge a whole bunch more for an intake that came off a 6.0 Trailblazer SS. I also see different part numbers for the main intake so I'm wondering if port volume or runner length is different or something?
Maybe it's just in the bolt on parts- injectors and throttle body size?
HR magazine says the Trailblazer SS intake flowed better hp and TQ than an LS1 or earlier truck intake and better than a couple aftermarket intakes as well. If they're the same internally seems it would be a good idea to nab one off a 4.8 or 5.3 for cheap and call it a day. I just want to make sure that I'm spending money on a viable upgrade if I were to buy an average later truck intake to replace my earlier truck intake.
Thanks again for your input!
Maybe it's just in the bolt on parts- injectors and throttle body size?
HR magazine says the Trailblazer SS intake flowed better hp and TQ than an LS1 or earlier truck intake and better than a couple aftermarket intakes as well. If they're the same internally seems it would be a good idea to nab one off a 4.8 or 5.3 for cheap and call it a day. I just want to make sure that I'm spending money on a viable upgrade if I were to buy an average later truck intake to replace my earlier truck intake.
Thanks again for your input!
I just don't believe that GM would go to the expense of developing a manifold with a different design for a limited production vehicle (TBSS).
Andrew
Teching In
Joined: Dec 2010
Posts: 39
Likes: 6
A truck LS intake manifold and oil pan will not fit in a '78 Monza. You will need an F body intake, oil pan, and oil pick up tube with screen. Better still get an F body All aluminum 5.7L engine with all the wiring and ECM and do a more typical swap. That set up is lighter than a Gen 1 SBC and will make that Monza really perform.
There are also several gen 3 and gen 4 5.3L aluminum block variants. My Cougar has run 12.7@107 at 3400 race weight with a LH8, ASA cam and my crazy "dual quad" tunnel ram...
Andrew
Andrew
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Thread Starter
On The Tree
Joined: Aug 2010
Posts: 143
Likes: 0
From: Eagle Mountain, Utah
I already have a dependable 5.3 from a 2003 Tahoe, Texas Speed reworked ecm and pinned out harness. My son was going to use it in his Pro Touring G body Cutlass wagon and then decided to go with more cubes so I got the 5.3 from him.
It'll fit, I'm doing something different with the front suspension clip. I'll be running likely the Hummer/ Hot Rod pan. The taller intake should fit fine under a cowl ind. hood. I'm sticking with the truck intake because I want the better torque figures and I already have a complete engine. I've seen the later truck intakes complete on ebay so I was thinking about that instead, everywhere I read the TBSS intake makes even more power than the older LS Truck intake. Plus I like to do things that other people haven't. Every LS powered Vega/ Monza I've seen has a car intake. That's challenge enough for me to make it work.
It'll fit, I'm doing something different with the front suspension clip. I'll be running likely the Hummer/ Hot Rod pan. The taller intake should fit fine under a cowl ind. hood. I'm sticking with the truck intake because I want the better torque figures and I already have a complete engine. I've seen the later truck intakes complete on ebay so I was thinking about that instead, everywhere I read the TBSS intake makes even more power than the older LS Truck intake. Plus I like to do things that other people haven't. Every LS powered Vega/ Monza I've seen has a car intake. That's challenge enough for me to make it work.
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