GMPP makes a carb intake/ HEI distributor type for LT1s.

 

Didn't TPiS and Lingenfelter/Accell each use to make an intake for the LT1, or was that just for the L98?

 

I'm positive that the Lingenfelter/Accel version of the LT1 intake was called the Super Ram, and the TPiS version was called the Mini Ram...both for the LT1.

 

With a mostly stock LT1 engine, do you need to make any mods to put the Lt 4 intake on?

 

There's some machinework required.

Either way, it's worth next to nothing, spend yer $ elsewhere .

 

http://www.moreperformanceinc.com/z06.htm#smi

Theres your aftermarket LT1 intake manifold, that is why more people dont make them, $2900 for probably no performance gain, and who have you ever heard of having one of those on their LT1, and if it was on there for a reason. Looks pretty sweet though, but still doesnt improve on the only thing that needs to be improved on the LT1 (aluminum)

One thing Ive never heard mentioned is extrude honing, cant that be done to polish the internal surface of LT1 intakes? And that thermal barrier would be nice too, anybody know how much that runs?

 

Mmm.. yeah I think you could end up at around 30-40% that cost & have a manifold that'd make better power if you talked to the right people .

As far as extrude honing goes, I don't see it being worth the time... it's not that hard to port the LT1 intakes short straight runners & the interior surface finish isnt something I'd be terribly worried about IMO .

 

So from my limited knowledge of things of this nature, if there were a deep(long) runner intake available that was with good sized straight runners, that would help out in the torque departement correct, the short runners are supposed to create more topend HP. Which is what doesnt make sense that the LS1 has longer runners and is a topend engine and visaversa for the LT1. It seems if you had access to materials and could weld aluminum as pretty as they do on that one it would not be terribly difficult to match all the face specs up with the stock, and you can do whta you want with the rest of it basically.

 

I think its the way its designed cause the l98 has good torque but it has top end what so ever. power stops at 4500-4800 or so. i think its just the way the intake is designed on the ls1 being long runner.

 

The sad thing is that a good head cam LS1 will make as much TQ as a 383 LT1. The long runners with a healthly amount of tapper help that intak do everything well. The good heads make it so much better of a engine over the LT1, even in big cube form.

I've converted SBC intakes over for LT1's and it's the easy way to go. A simple conversion with good intake is about $600. Making it EFI takes some more effort, but it's still way cheaper than a Hogans intake.

Bret

 

what if you start out with an SBC intake thats already fitted for EFI? how much then?

 

Well if there's no additional time necessary to convert it to EFI, I doubt there'd be any additional cost .

For most people, a converted race type SBC intake isn't something they need IMO. It would help on a few setups, but for the $/hp would probably be cost prohibitive for most people, necessitating machinework, expensive throttle bodies, hood clearance/ducting issues, etc.

IMO anyway

 

There are a few companies that do heat coatings... One company is called techline coatings. They put a thermal barrier on the bottom and a thermal dispersant on the top to make for one cool intake manifold. That's probably what I will end up doing if anything. It's 150 bucks.

 

Yes. I have it. Here a link to my website with some pics.



69mscle website with LT1 SuperRam intake

 

How hard do you think it would be and what possible benifits would there be to mounting a new GM Ram Jet intake on an LT-1?