LT1 intake on L98
Thread Starter
Instructor
Joined: Jan 2006
Posts: 173
Likes: 0
From: Cleveland Ohio
LT1 intake on L98
I just picked up an lt intake to have monified and put on my 85. Is it really worth the trouble? Am I better off on sticking to the TPI?
Just looking for some opinions
Also who is doing the mods? I heard Lt1intakes is no longer doing them.
Thanks
Gary
Just looking for some opinions
Also who is doing the mods? I heard Lt1intakes is no longer doing them.
Thanks
Gary
Melting Slicks
Joined: Oct 2006
Posts: 2,238
Likes: 10
From: College Station TX
If you want more power, it is definitely worth the effort.. Stock TPI is quite restrictive.
Le Mans Master
Joined: Feb 2000
Posts: 9,715
Likes: 27
From: Kempner Texas
Check on he Camaroz28.com Forum. There's a guy there named Bret Bauer who may still do them. If not, he/they can point you to someone who does.
Jake
Racer
Joined: Nov 2004
Posts: 445
Likes: 0
Team Owner
Joined: Sep 2001
Posts: 62,160
Likes: 1,733
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Cam choice depends on alot more things, what are you looking for from the engine? Bear in mind that an 85 remains hyd. flat tappet, not a roller cam.
I would take the LT1 intake over the TPI in general, but that also depends on what you want from the engine.
I would take the LT1 intake over the TPI in general, but that also depends on what you want from the engine.
Team Owner
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
I particularly like the Lunati Voodoo cams, but like Vader said it can vary quite a bit.
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Drill 2 holes for water outlets , machine intake for dist and redrill intake bolt pattern.
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Team Owner
Joined: Mar 2001
Posts: 30,856
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
I've got the chevy cad files for a stock intake if you need the measurements.
Keep in mind LT1/4's have a different bolt pattern.
Also a miniram is always an option, just a little more $$$
Keep in mind LT1/4's have a different bolt pattern.
Also a miniram is always an option, just a little more $$$
Burning Brakes
Joined: Aug 2004
Posts: 1,110
Likes: 1
From: Geneseo Illinois
St. Jude Donor '06
I got my LT1 intake conversion done by Adams Holzhouse, (Sp) who lists on ebay. He did a pretty good job as we have found so far.
Issues so far: throttle line and TV line shortened; location of external T-neck; ECT sensor fitment, grinding the intake bolt holes, fuel lines, coolant hose routing, vacuum lines. Most all of this is described on www.lt1intake, as well as various forums such as third gen , camaro z28
Issues so far: throttle line and TV line shortened; location of external T-neck; ECT sensor fitment, grinding the intake bolt holes, fuel lines, coolant hose routing, vacuum lines. Most all of this is described on www.lt1intake, as well as various forums such as third gen , camaro z28
Instructor
Joined: Apr 2004
Posts: 166
Likes: 4
From: Moneta, VA
LT1 vs. L98 depends on what you want.
L98 is all done by 4500 rpm
LT1 is just waking up at 4000 and loves to go to 6500 rpm.
Look at the whole package and match the intake to the rpm's you are looking for.
L98 is all done by 4500 rpm
LT1 is just waking up at 4000 and loves to go to 6500 rpm.
Look at the whole package and match the intake to the rpm's you are looking for.
Melting Slicks
Joined: Feb 2006
Posts: 2,753
Likes: 15
From: backwoods upstate ny
will never go back to tpi...have an lt1 intake presently on a 355 ci and previously ran one on a 406 (sold the whole thumper, actually a 400+o.040 = 409 for an offer i couldn't ref, cookin a new one)...like a totally different car with the lt1 intake vs the tpi on both...you can shift the tpi when it ''flattens out'' but with lt1 intake be careful to NOT over-rev, things happen sooooo much faster.local shop was doing the conversion, numerous improvements from typical other set-ups... stopped, but grapevine sez they're back...will advise if you'd like.
Last edited by redrose; Oct 3, 2007 at 08:52 PM.
Drifting
Joined: Oct 2005
Posts: 1,257
Likes: 4
From: North Carolina
This is something I seriously intend on doing after I do either heads and cam or a full rebuild.
I like the L98 TPI with my 3.54 gears because it gives instant gratification. Lots of torque. I don't know how changing to a LT1 will effect your toque curve... but in my 96 Impala, with the LT1 it only starts to wake up around 3500 even though the car is supposed to make it down low.
Maybe some of you guys could chime on what happens to torque and horsepower curve.
In any event, I think a set of gears would be much more beneficial,... I like my 3.54's
DG
I like the L98 TPI with my 3.54 gears because it gives instant gratification. Lots of torque. I don't know how changing to a LT1 will effect your toque curve... but in my 96 Impala, with the LT1 it only starts to wake up around 3500 even though the car is supposed to make it down low.
Maybe some of you guys could chime on what happens to torque and horsepower curve.
In any event, I think a set of gears would be much more beneficial,... I like my 3.54's
DG
