AChadwick
Newbie
I started my build about 3 months ago. I pulled a sbc 350 from a 1998 K1500 that has cast iron vortec heads about 5 years ago and finally got around to putting it in my truck.
My truck as the title says is a '88 c1500 with a small block 350 stock. I pulled out most unnecessary things to have a clean and spacious engine bay to make working on it easier. I installed the vortec 350 with a CCS40 Cam
I'm utilizing the TBI and the truck is running great besides some minor hiccups I had to get it to where it is. I was talking to a buddy about modifying the TBI module and did some reading online for the "free" mods to the TBI module itself.
My question is has anyone had any significant luck with radiusing the flanges and or boring out the TBI. I'm looking for some other ways to make more power without breaking the bank and one thing that I have plenty of is power tools and sand paper. I've also seen people notch their intake manifold and it helps with vacuum and has a relatively good increase in midrange power.
I have heard that with great boring comes great reprogramming of the computer / replacing said ECM and attaching fuel pressure regs to the fuel line not to mention getting a decade newer fuel pump.
All these things are fine and can be done but before doing any of this I was wondering if anyone else has done this and has charts of the before and after modifications. Just to see if it's even worth the time and effort.
Yes I want more power but I don't want a whine or whistle coming from my engine bay. I'm trying to keep it non forced induction.
My truck as the title says is a '88 c1500 with a small block 350 stock. I pulled out most unnecessary things to have a clean and spacious engine bay to make working on it easier. I installed the vortec 350 with a CCS40 Cam
- Exhaust Advertised Duration (Deg): 280 Degree
- Exhaust Duration At 0.050 Inch Lift (Deg): 214 Degree
- Intake Advertised Duration (Deg): 271 Degree
- Intake Duration At 0.050 Inch Lift (Deg): 207 Degree
- Intake Valve Lift (in): 0.410 Inch
- Lifter Type: Hydraulic Roller
- Exhaust Valve Lift (in): 0.427 Inch
I'm utilizing the TBI and the truck is running great besides some minor hiccups I had to get it to where it is. I was talking to a buddy about modifying the TBI module and did some reading online for the "free" mods to the TBI module itself.
My question is has anyone had any significant luck with radiusing the flanges and or boring out the TBI. I'm looking for some other ways to make more power without breaking the bank and one thing that I have plenty of is power tools and sand paper. I've also seen people notch their intake manifold and it helps with vacuum and has a relatively good increase in midrange power.
I have heard that with great boring comes great reprogramming of the computer / replacing said ECM and attaching fuel pressure regs to the fuel line not to mention getting a decade newer fuel pump.
All these things are fine and can be done but before doing any of this I was wondering if anyone else has done this and has charts of the before and after modifications. Just to see if it's even worth the time and effort.
Yes I want more power but I don't want a whine or whistle coming from my engine bay. I'm trying to keep it non forced induction.