LTX and LSXPutting LT1's, LS1's, and their variants into Third Gens is becoming more popular. This board is for those who are doing and have done the swaps so they can discuss all of their technical aspects, including repairs, swap info, and performance upgrades.
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I just began my LSx swap. :smile: I am replacing the current 305 tpi and 700r4 with a 5.3L LM7 and a 4L60e. Hopefully this will be done for the warm weather.
Here is the new engine and trans waiting to go in.
It would be interesting to see a "LS1-styled" intake on a 1st gen block. Obviously a whole new port redesign would be needed to match up, but the top could still look almost the same.
TPI has the plenum on top, LS1 has the plenum on bottom. Both are LTR setups. LS1s were designed for the 5.7 engine so they flow quite well for them. TPIs were designed for 305's so they flow good for them and nothing else
TPI has the plenum on top, LS1 has the plenum on bottom. Both are LTR setups. LS1s were designed for the 5.7 engine so they flow quite well for them. TPIs were designed for 305's so they flow good for them and nothing else
We understand that.
We were referring to a lower plenum/upper runner intake (LS1-style) on a Gen 1 block.
It's been a while since I posted about my swap. The old engine has been out since mid January. I opened up the new engine which had been sitting in the garage for a while.
Tried the magnetic pen trick for the lifters, but broke a piece off and couldn't get to it. So the heads come off.
Got the LS6 springs installed. I removed the AC and have a non-AC heater box going in. Also started priming parts for paint. I'm still waiting on head gaskets and oil pan parts before the engine can go in.
that is a trick little spring compressor!!! where can i get one?
__________________ Matt
370ci LSx, "Close Enough Racing" th400, Transmission Specialties XHD9" 4500 stall converter, Moser 9" 4.30's, Mickey Thompson 28x10.5S's rollin' on BS Street Lites. Pump gas and street driven...doin' it all motor!
Looks nice, although I would have left the heads as their regular aluminum color. I'd also do a thorough cleaning of the engine bay before that puppy goes in.
Just my
I like the look of painted heads better than just a painted shortblock. I do have my work cut out for me in terms of the engine bay. It will get a good cleaning, and it still needs the new mounts installed.
My engine is painted orange block + heads and it looks great with the polished TPI on top! I would have gone with a polished LS6 intake tho!
__________________ "An engine is like an orchestra. It's made up of wind, brass, percussion, and a whole range of other complimentary sections, all working to make that beautiful music that we call 'performance'..."
271FWHP - 354FWTQ --> (UN-TUNED... Tuning in progress! Will DYNO again soon...)
For mods go here --> http://1986irocz.tripod.com/
14.2 @ 96 on the 1/4 mile...
you figure out a way to polish a plastic intake and you let us know how that works for ya!
__________________ Matt
370ci LSx, "Close Enough Racing" th400, Transmission Specialties XHD9" 4500 stall converter, Moser 9" 4.30's, Mickey Thompson 28x10.5S's rollin' on BS Street Lites. Pump gas and street driven...doin' it all motor!
plating and polishing are two different things in my book...in general, plated or coated plastics look cheesy...
__________________ Matt
370ci LSx, "Close Enough Racing" th400, Transmission Specialties XHD9" 4500 stall converter, Moser 9" 4.30's, Mickey Thompson 28x10.5S's rollin' on BS Street Lites. Pump gas and street driven...doin' it all motor!
plating and polishing are two different things in my book...in general, plated or coated plastics look cheesy...
Yes but......
This finish is not a spray paint or vacuum metalizing. This finish is the combination of special catalyzed base coatings; a silver metal deposition (similar to the material used in mirrors) and a protective acrylic urethane top coat (similar to the industrial clear coat on your car). The combined layers result in a durable non peeling coating that will not flake or yellow. Yes, the finished surface will accept conventional paints to enable striping, accenting with graphics or airbrushing.
could be cool. the biggest thing i hate is the paint chipping off of plastic stuff...
__________________ Matt
370ci LSx, "Close Enough Racing" th400, Transmission Specialties XHD9" 4500 stall converter, Moser 9" 4.30's, Mickey Thompson 28x10.5S's rollin' on BS Street Lites. Pump gas and street driven...doin' it all motor!
I had to sit through an extremely dull meeting earlier this week, and during that time, my mind drifted to thoughts of the LS1-styled SBC intake. I even drew pictures in my notes.
The conclusion that I've come to, is that there would be at least two major issues to overcome:
The first is that the water neck will interfere with a throttle body. The solution here is probably to offset the throttle body to the passenger side, but that may impact runner placement to some extent.
The second, is also coolant related. The SBC routes coolant through the intake. The LS1 does not. I'm not sure that you can put the plenum as far down on an SBC as an LS1 because you need to route the coolant through it. Likewise, that hot coolant right under the plenum will heat up the incoming air charge more than in a TPI system, which has the plenum set way above the coolant with a huge air gap in between.
My other question is just how much of a role does the intake manifold play on the overall strength of a small block motor? From what I can see, other than holding the distributer in place, there really isn't much of a need for an iron or aluminum intake. I'm kind of surprised that somebody hasn't started making conventional-style SBC intakes out of plastic.
Someday when I have huge amounts of extra time and money (i.e. never), maybe I'll start experimenting with some fiberglass mockups.