best engine upgrades
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
He's got a carb on it now, so it's not an "L98". It could exploit the appropriate gains from heads.
That's because it's actually not:
It's a Corvette.
It's a Corvette.
Burning Brakes
Joined: Sep 2016
Posts: 1,133
Likes: 319
From: Ohio
So the TPI makes it an L98? Since when does removing an intake manifold instantly obselete the block casting/features/long block specific specs to that RPO code?
I guess we are going to ignore the aluminum L98 heads and roller cam based block?
Try swapping L98 cam/lifters into a typical gen 1 block.
I guess we are going to ignore the aluminum L98 heads and roller cam based block?
Try swapping L98 cam/lifters into a typical gen 1 block.
Pro
Joined: Apr 2004
Posts: 621
Likes: 37
From: Texas
L98 113 heads are not terrible. same heads GM used on the 345 horse zzz-zz4 crate motors. I built a 350 back in the day with a comp 280 cam and performer rpm intake and those heads. That motor surprised a bunch of people. On a budget get your exhaust done from headers back,change the intake to a performer rpm,leave the heads on the motor and just do a spring swap,pick a cam and carburetor.
Team Owner
Joined: Aug 2004
Posts: 21,543
Likes: 3,216
From: Park City Utah
So the TPI makes it an L98? Since when does removing an intake manifold instantly obselete the block casting/features/long block specific specs to that RPO code?
I guess we are going to ignore the aluminum L98 heads and roller cam based block?
Try swapping L98 cam/lifters into a typical gen 1 block.
I guess we are going to ignore the aluminum L98 heads and roller cam based block?
Try swapping L98 cam/lifters into a typical gen 1 block.
1. L98 started w/a flat tapped cam, not a roller
2. L98 started with iron heads, not aluminum
3. Yeah, once you remove the TPI intake, you basically have a "GM 260hp long block" that you can buy as any crate replacement motor. From a functional stand point, once you remove the TPI and replace it w/something else (a carb, in the OP's case), you've just removed the RPM limiting long tube runner...now you have a motor that can rev (some) -even with the stock cam. This makes the prospect of heads more viable/appealing/better value than slapping heads on an L98 (with it's TPI).
4. WTF Diff does it make, as it relates to the OP putting heads on his car?? NONE.
Burning Brakes
Joined: Sep 2016
Posts: 1,133
Likes: 319
From: Ohio
Jesus Christ....we're going to go down this hair splitting road again?
1. L98 started w/a flat tapped cam, not a roller
2. L98 started with iron heads, not aluminum
3. Yeah, once you remove the TPI intake, you basically have a "GM 260hp long block" that you can buy as any crate replacement motor. From a functional stand point, once you remove the TPI and replace it w/something else (a carb, in the OP's case), you've just removed the RPM limiting long tube runner...now you have a motor that can rev (some) -even with the stock cam. This makes the prospect of heads more viable/appealing/better value than slapping heads on an L98 (with it's TPI).
4. WTF Diff does it make, as it relates to the OP putting heads on his car?? NONE.
1. L98 started w/a flat tapped cam, not a roller
2. L98 started with iron heads, not aluminum
3. Yeah, once you remove the TPI intake, you basically have a "GM 260hp long block" that you can buy as any crate replacement motor. From a functional stand point, once you remove the TPI and replace it w/something else (a carb, in the OP's case), you've just removed the RPM limiting long tube runner...now you have a motor that can rev (some) -even with the stock cam. This makes the prospect of heads more viable/appealing/better value than slapping heads on an L98 (with it's TPI).
4. WTF Diff does it make, as it relates to the OP putting heads on his car?? NONE.
This ZR1 blown the engine and its about to be pulled. I guess it'll no longer be a ZR1. Time to vette-kart it.
Burning Brakes
Joined: Sep 2008
Posts: 810
Likes: 58
From: Alva Florida
Get a Summit tappet cam kit for 150 bucks.
Valve springs 100 bucks
S10 Hood scoop for the hood 150 bucks +/- if you want to fix the hood. Worked perfectly for me.
Performer rpm intake 200 bucks
Gears ~ I have no idea of the cost.
Have fun. It's not a purist Corvette.
Valve springs 100 bucks
S10 Hood scoop for the hood 150 bucks +/- if you want to fix the hood. Worked perfectly for me.
Performer rpm intake 200 bucks
Gears ~ I have no idea of the cost.
Have fun. It's not a purist Corvette.
Burning Brakes
Joined: Sep 2016
Posts: 1,133
Likes: 319
From: Ohio
He has a 90, so it'll be a roller block.
Performer RPM intake is also a solid performer for the RPM range.
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Thread Starter
Racer
Joined: Feb 2019
Posts: 397
Likes: 29
From: Jackson, mi
it's a 91 actually 6 speed with 3.45 gears. i ordered the hooker headers and pypes true duals with x pipe exhaust, waiting for that to show up now.
think i will pick up the ..
lunati voodoo cam kit
think i will pick up the ..
lunati voodoo cam kit