I am looking to buy another camaro and I want to know how to tell the difference between a 305 tpi and a 350 tpi. For all I know, the pretty much look the same.

Carl

 

The 8th digit of the VIN indicates the motor (that originaly came in the car). F is for a 305 TPI and 8 is for a 350 TPI. The emissions label under the hood should also specify 5.0l or 5.7l.

 

And the fuel injectors will be different sizes of course.

 

Althought this can be easily changed, the automatic shifter on an L98(350) is square and it is round on the LB9(305).

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1989 Chevrolet Camaro IROC-Z
L98 - 350c.i. TPI, rebuilt 700R4 auto w/shift kit, Dual catalyst Monza PaceSetter Cat-Back, SLP 1 5/8 Coated Headers, 3.23 Posi rear, Hypertech chip with 160stat, MSD 6A, Under-Drive pulleys, AFPR, K&N's, !Air Box w/ Ram Air, moddified MAF, !TB Coolant, Spohn Dual Cat SubFrame Connectors, Alarm, Keyless entry, remote starter, 92 Z28 AeroWing, Brand New Paint (6/21/01)

Future: ZZ4 TPI w/EGR, T56, 3.42 or 3.73, Spohn strut tower brace and LCA's

1989 Chevrolet Celebrity Eurosport
2.8 MPFI, no mods
225,000 miles and still ticking!

More info and pics on my webpage:http://go.to/iroc-z

AOL IMer: GPA 0point0

 

check the RPO codes in the glove box. L98 is the 350. of course that only tells u what the original engine was. the only real way to tell is to get the casting numbers off the block, but if it has been decked then your gona have to pull a head and measure the bore if u want to be 100% sure.

 

l98irocz89, my car came with the 305 TPI and it had the square shifter.?. I have since changed the 305 to 350.

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89 Iroc 350 TPI,
Forged pistions
Comp roller Cam .510 lift 230dur
Flowmaster exhaust
Dart Iron Eagle heads 200cc runners 64cc chambers
MINI RAM SOON!!!!!
stock TPI for now 24# inj
87 Trans Am GTA 350 TPI
had engine fire
SHE NOW RUNS!!!! GREAT!!
Flowmaster exhaust
LT1 Injectors

 

Urban legend... A post settled this once and for all a couple months ago, there is NO correlation between shifter **** and engine size. Not in dealer literature, not in RPOs, and not in a real world poll of members of thirdgen.org

edit...forgot to add, i have a square shifter **** and 305

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Ed Maher - Moderator @ The TPI & Carb Boards
92 Z28 Convertible - Quasar blue / Tan top
305 TPI A4 2.73 - 14.8 @ 93.1
Stock except ported plenum and dual cats
-=ICON Motorsports=-

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

[This message has been edited by Ed Maher (edited September 25, 2001).]