I NEED PART #'s

**screaminbird** · 08-20-2008, 03:20 PM

Ok so my cousin the one i bought my 1999 trans am m/6 from is being an ass and wont tell me anything done to internals or anything so far that i know of i have an LS7 Clutch,Short throw shifter,air lid,msd wires,hooker long tubes egr/delete,mandrel bend exhaust and no air pump i stole his dyno sheets from him and it had 383.57hp and 347.17ft-lbs at the wheels does this sound right with stock internals. Anyways now i need help with part #'s. To see if my MAF,Throttle Body, and Intake manifold are stock, please let me know asap if they are

Intake Manifold-# 1 2 5 6 0 6 8 8

Throttle Body- # 7 0 4 0

MAF- # 8 9 8 7 1 9 1 4 5 7 5

any help is appreciated also where is the part # on the heads can i get to it without dissambling alot of stuff

**Y2KPewterSS** · 08-20-2008, 03:54 PM

Originally Posted by screaminbird

Ok so my cousin the one i bought my 1999 trans am m/6 from is being an ass and wont tell me anything done to internals or anything so far that i know of i have an LS7 Clutch,Short throw shifter,air lid,msd wires,hooker long tubes egr/delete,mandrel bend exhaust and no air pump i stole his dyno sheets from him and it had 383.57hp and 347.17ft-lbs at the wheels does this sound right with stock internals. Anyways now i need help with part #'s. To see if my MAF,Throttle Body, and Intake manifold are stock, please let me know asap if they are

Intake Manifold-# 1 2 5 6 0 6 8 8

Throttle Body- # 7 0 4 0

MAF- # 8 9 8 7 1 9 1 4 5 7 5

any help is appreciated also where is the part # on the heads can i get to it without dissambling alot of stuff

Intake manifold is the LS1 intake, which is stock for 99 models.

**screaminbird** · 08-20-2008, 04:27 PM

where would i find the head numbers and does that dyno sound right

**Another WS6 Guy** · 08-20-2008, 06:58 PM

Originally Posted by screaminbird

Ok so my cousin the one i bought my 1999 trans am m/6 from is being an ass and wont tell me anything done to internals or anything so far that i know of i have an LS7 Clutch,Short throw shifter,air lid,msd wires,hooker long tubes egr/delete,mandrel bend exhaust and no air pump i stole his dyno sheets from him and it had 383.57hp and 347.17ft-lbs at the wheels does this sound right with stock internals. Anyways now i need help with part #'s. To see if my MAF,Throttle Body, and Intake manifold are stock, please let me know asap if they are

With those mods, i seriously doubt it would make those numbers at the wheels. Knowing that a bone stock 02 SS A4 dyno'd at 296whp, i'd say the tock 99's put down around 280-290 at the wheels so intake/exhaust/egr delete/wires wouldn't make 100whp. Not even with a tune. It probably has a small cam like an LS1 hot cam or a ZO6 cam. That's my guess.

**screaminbird** · 08-20-2008, 07:02 PM

how would i tell when i pull it out

**Another WS6 Guy** · 08-20-2008, 07:05 PM

Originally Posted by screaminbird

where would i find the head numbers and does that dyno sound right

the stock head number should be 12559853. And they are located either between number 1 and 2 underneath the valve cover or on the back of the head.

**screaminbird** · 08-20-2008, 07:10 PM

so id have to take off the manifold and stuff, oor should i try taking off the valve covers first

**Another WS6 Guy** · 08-20-2008, 07:12 PM

Originally Posted by screaminbird

so id have to take off the manifold and stuff, oor should i try taking off the valve covers first

I'd pull just the coil pack assembly and valve cover on one side (driver) and check in the rocker valley.

**screaminbird** · 08-20-2008, 07:18 PM

sweet ill have to do that in the morning yah do you know if my maf and tb is stock the only reason i ask is because when i pulled it to clean it the gasket on it looked newer

**Another WS6 Guy** · 08-20-2008, 07:22 PM

Originally Posted by screaminbird

sweet ill have to do that in the morning yah do you know if my maf and tb is stock the only reason i ask is because when i pulled it to clean it the gasket on it looked newer

The gasket is a rubber molding ring so it will always look newer. Like an orangish red color? Let me look around for the stock MAF and TB numbers, if I find them, I'll let you know.

**screaminbird** · 08-20-2008, 07:24 PM

thankyou so much for the tips and info i appreciate it

**Another WS6 Guy** · 08-20-2008, 07:30 PM

25179711 STOCK LS1 MAF Part Number

17113390 STOCK Throttle body for 98-99 F-body

I don't know how you came out with a 4 digit number???

**Another WS6 Guy** · 08-20-2008, 07:31 PM

Originally Posted by screaminbird

thankyou so much for the tips and info i appreciate it

no problem. that's what we're here for.

**screaminbird** · 08-20-2008, 07:32 PM

its right ontop of my tb

so then is my maf aftermarket

**Another WS6 Guy** · 08-20-2008, 07:38 PM

Originally Posted by screaminbird

its right ontop of my tb

so then is my maf aftermarket

I think the p/n on the tb is on the side of it? And I'd say the maf is aftermarket but I'd look all over it and make sure there's not a diff p/n on it.