Ported Throttle Body

[1BADI5]

I have a GM "RME87" throttle body from GMT900 full size trucks/SUVs that I have ported. I have been porting GM TBs/MAFs and LSA blowers for years now.

I cleaned, disassembled, cleaned again, ported, reassembled, painted and tested on my truck( to ensure there is no check engine lights or drive-ability issues.

I will attach pictures here in a moment from my phone.

$210 shipped with insurance & Tracking via USPS Priority shipping

 

[Dantheman1540]

What kind of gains can be expected with the ported 87 on a TBSS manifold? My current 87 is having issues and I have a LS2 90mm on the shelf but have heard the 90mm is a downgrade unless the manifold is ported.

 

[Dantheman1540]

Double post

 

[1BADI5]

Attached are before and after pictures

 

[1BADI5]

What kind of gains can be expected with the ported 87 on a TBSS manifold? My current 87 is having issues and I have a LS2 90mm on the shelf but have heard the 90mm is a downgrade unless the manifold is ported.

With my ported TB and mildly ported intake manifold I picked up 20 wheel HP. Beyond that you'll notice crisper throttle response.

 

[Drok]

Nice job. Is it difficult to port the intake to match up? Does this also require a tune?