Okay, my motor has 186,000 miles. It's in fairly good condition. Everything is in tune. I've been wanting a new cam and have decided i'd get 3.42 gearing for my 9 bolt rearend, and then do the LT1 intake conversion. I just don't understand this cam stuff. Providing i put the aluminum corvette heads on my car that are ported. (hey, their gonna be free) So help me out. Which cam should i get?

Note: I have a dacco converter which stalls at 1800 rpms.

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89 IROC-Z 350 TPI

-Flowmaster Catback
-Performance Resource Chip
-700R4 (Rebuilt) Too much done to actually list
-K&N Airfilters
-Ported Plenum
-2.77 Gears (not much to brag about but eh, its there)
-MSD 8.5 mm plug wires
-Gutted cat
-!AIR
-Gutted Air Boxes

 

What size valves are you going to have in the L98 heads?

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Later,
Vader
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Justice and Freedom will Prevail

 

Whatever they come with (which i have no idea on). I believe their the stock valve size but if i can scrounge the money to get bigger valves i will.

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89 IROC-Z 350 TPI

-Flowmaster Catback
-Performance Resource Chip
-700R4 (Rebuilt) Too much done to actually list
-K&N Airfilters
-Ported Plenum
-2.77 Gears (not much to brag about but eh, its there)
-MSD 8.5 mm plug wires
-Gutted cat
-!AIR
-Gutted Air Boxes

 

well my aluminum corvette heads got sold. So how about ported L98 iron heads? What cam would work with those?

------------------
89 IROC-Z 350 TPI

-Flowmaster Catback
-Performance Resource Chip
-700R4 (Rebuilt) Too much done to actually list
-K&N Airfilters
-Ported Plenum
-2.77 Gears (not much to brag about but eh, its there)
-MSD 8.5 mm plug wires
-Gutted cat
-!AIR
-Gutted Air Boxes

 

For the TPI setup with ported L98 heads I would try the ZZ4 cam from GM. But if you really want to go to an LT1 intake on an engine that old, try the LT4 HOT cam from GM. Just my $0.02.

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1990 IROC 350
Mods: Too busy trying to make it run right to mod it.
Airfoil, Dynomax cat-back, MSD coil, 180 t-stat, Bald Eagle tires,
Hypertech fan switch, Accel 23# injectors, Holley module, ported plenum,
Ported Daytona Yellow stock base, Moroso valve covers, other stuff,
Streetdampr, Ruger P95DC, hot wife, new oil filter, !cats, !TBC, !AIR.
18.0 @ 85MPH since I'm one big-a$$ MF
"It's better to have and not need than to need and not have."

 

I just look at it as.."Why not..." If i make my 383 which is on paper or decide a 6" rod 357 i can always use the LT1 manifold again.

------------------
89 IROC-Z 350 TPI

-Flowmaster Catback
-Performance Resource Chip
-700R4 (Rebuilt) Too much done to actually list
-K&N Airfilters
-Ported Plenum
-2.77 Gears (not much to brag about but eh, its there)
-MSD 8.5 mm plug wires
-Gutted cat
-!AIR
-Gutted Air Boxes