Im going to look at a 86 IROC Which he says is a 5.7 Liter. How do I know if its a real 5.7?

I know they were rare in 86

 

They are rare like 50 of them. Does the car have T-Tops, they didn't put 350's in T-Top cars. Also all 5.7 L IROC's that I have seen had the 5.7 badging undering the Z28 or IROC badge on the side ground effects. You can check the VIN # too, I believe it is the 8th digit. I think G and H were 305's. Also there should be a RPO sheet on the under side of the console lid. One of those should give the engine code as well.

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'86 IROC
T-TOPS, TINTED WINDOWS, BRAKE LIGHT BLACKOUTS
GM GOODWRENCH 350
EDELBROCK TES HEADERS
FLOWMASTER
EDELBROCK 600CFM CARB.
KN AIRFILTER
ACCEL HEI DISTRIBUTOR
160* Stat
2:73 GEARS
Rebuilt 700R4, with manual valve body
B&M Megashifter
Soon to be installed
Exhaust Cut-Out and different gears, either 3:73 or 3:42
"There is nothing more addicting than speed"

 

if it doesn't have L98 on the rpo sheet it isn't a 350. the vin will have an 8 for the engine code insted of a letter. my L98 iroc has t tops, that has come up before and it seems to cause a lot of argueing about 350's and t tops.

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ICON Motorsports
1st & 3rd
MM Black Diamond 538 F&AM

 

Cool,

You can be almost certain that it is not stock if it has a 350. It could be a retrofit engine, however. Take some paper towels, a flashlight, and note pad. Get the casting number from the rear ledge of the case just to the left of the distributor. Check the casting number and you'll be able to determine what the engine displacement truly is.

It's possible that the seller doesn't even really know what it is, especially if they got the car used. It can be difficult to distinguish teh two engines, since there are no other definite outward differences between the two blocks. Some people have said that the 350s have a large "57" cast in the lower left side of the case, but so does my 305.

And I could be mistaken again, but I believe all the test "mules" that the factory used to install the L98 in 1986 were plain Camaros and plain Firebirds, not IROCs and TAs.
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Later,
Vader
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"Let the bodies hit the floor!"
Adobe Acrobat Reader

[This message has been edited by Vader (edited June 10, 2001).]

 

Thanks Guys! Don't wanna get ripped off!

Im going to look at it @2 p.m.


Wish me luck

 

look on the hood at the emissions routing sticker if it doesn't have one either he pulled it off to hide it or it was hit in either case you dont want it the vin would be the best place to check


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87 trans am 350 L98 aluminum heads,LT4 hot cam,slp runners,headers,y-pipe,edelbrock base,hi flo cat,air foil,ported plenum,t-5 tranny w/centerforce clutch and a 3.27 9bolt,ads strip chip,relocated iat sensor,hollowed maf

14.10@97mph w/2.01 60' 4SALE anyone want her?

 

Sometimes not the best way to check.
Y'know mine says 305... anyone wanna race?



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"Question with boldness even the existence of a God; because, if there be one, he must more approve of the homage of reason, than that of blind-folded fear."

-Thomas Jefferson

 

I went there, he said it was in good shape.

I get there, check Vin and RPO Codes and its a 5.0 And the THING WAS A Rusty piece of crap

Guess Ill keep looking!

Thanks again for your help guys! I really appreciate it!