i have the oppurtunity to get a lt1 cam from a 94 lt1 f-bod would it be a good idea to run this cam in my motor?? what would need changed? valve spring? lifters etc???

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87 IROC-z 305 TPI 5spd Borg warner 9-bolt 3.45 posi 4 wheel disc,8.8 Accel wires , bosch platinum +4 plugs,gutted air box,TB coolant bypass ,polyurethane tranny and torque arm mounts, k&n oil filter,synthetic oil 10w30, futura GLS super sport tires 265/50/15 rear and 235/60/15 front mounted on 86 monte carlo SS rims ,

400 sbc and a 6 spd in the works

 

I did it and droped from 15.4 at 88 mph to 14.7 @92 MPH. But I had the peanut cam to start with.

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87 Z28 305 TPI, Auto, LT-1 cam (@.50 418/430, 194/199, LSA 111), roller timing set, 2.73, Gutted air boxes, K & N fillters, Dyno Max 3" cat back, 8.8 mm spirals, air foil, BFG Drag radials, and 170* Stat.
Old Best 15.414 @ 87.47.
new best 15.006 @ 89.55.

“Fallen But Not Forgotten”

 

What is the peanut cam? I have heard this term before, but I have no clue what it means.

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Joshua Johnston
1991 Z-28
Flowmaster
K&N
305 / 5spd. (Temporary)

 

The peanut cam is a very restricitve cam out on to some 3rd gens for one reason or another. I don't know the exact years it was used, but I know that my 86 Trans Am has one.

-Max

-'86 Trans Am WS6
-305 TPI with 700R4
-All stock until I fix all the problems

 

The peanut cam was installed in 86-89 305 TPI automatics, all 305 TBIs, and all LG4s. The 85 305 TPI (automatic only that year) has the L98 cam profile, as do all 90-92 305 TPIs, auto and 5 speed.

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91 Trans Am WS6
Bright White
5.0 TPI auto
Flowmaster 3" 2 chamber catback
Trans Go shiftkit
2000 stall converter

Built on Wednesday

 

Hrmmm, I've got an 86 IROC TPI Auto. Hate the transmission, but had it rebuilt last year so I'll have to wait a bit before I take the effort to drop a T-5 or T-56 into it. I'm looking to get a littel more power out of her for the time being, preferably with a new cam, but I'm not sure what I want yet. I know there have been other cam posts, but those are pretty vague, so here's my question: What cam will give me the biggest power increase without making too many other modifications? Basically I only want to have to replace the lifters and springs if it will give me a respectable amount of power for the money. Hopefully i can pick up 25+ horsepower since I've got teh restrictive cam in my car now.

 

actually from 83-90 all 305 motors got the peanut cam(in .269 ex .276) except the 305 tpi manual cars from what i have heard the cam the manual cars got was the same as the 350 cam (in .273 ex .285) anyone know if this is correct??? all info from my gm shop manual.

now back to my original question the lt1 cam does anybody else have any info on it ???

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87 IROC-z 305 TPI 5spd Borg warner 9-bolt 3.45 posi 4 wheel disc,8.8 Accel wires , bosch platinum +4 plugs,gutted air box,TB coolant bypass ,polyurethane tranny and torque arm mounts, k&n oil filter,synthetic oil 10w30, futura GLS super sport tires 265/50/15 rear and 235/60/15 front mounted on 86 monte carlo SS rims ,

400 sbc and a 6 spd in the works

 

The LT1 cam is basically identical to what you have now if you ran 1.6 rockers. It has very nearly the exact same duration as the L98 cam, just more lift. So in your case it is definitely not worth swapping cams to gain a little lift.

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Ed Maher - Moderator @ The Carb Board
92 Z28 Convertible - Quasar blue / Tan top
LB9 4L60 GU2 G80 - stock, soon to be sleeper
-=ICON Motorsports=-

- Definitely prototypes, high powered mutants of some kind. Too weird to live, too cool to die

 

thanks ed thats what i wanted to know ,any suggestions on what cam i should run???

 

I'm running an LT1 cam with 1.6 roller tips in my L98.The L98 cam was .415/.430 lift and the LT1 cam with 1.6 rockers is roughly .477/.489 lift.I didn't gain much duration but the gain in lift is substantial,especially if you look at the cam specs on some of the new crate motors.I believe the RamJet 350 is only around .451" or so.

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Fast as a shark~~~~~~~~~~~~~~~~~ SAVE NAPSTER!!!

 

how much did it cost you guys to have your cams installed or did you do it yourself. Please let me know i want to get one but i dont know about prices thanks