11-12-2016, 08:50 AM

PAUL K

Ultimate Warrior

Join Date: Feb 2004

Location: Sugar Grove IL USA

Posts: 7,441

Quote:

Originally Posted by steve25

If your rebuilding a RA4 do use RA4 type tulip Intake valves as they really don't flow any better under dynamic conditions and only add weight to the valve train. If you don't belive me then ask yourself why Pontiac did not use a tulip type Intake in the 455SD, or why the aftermarket heads don't use them!

Pontiac did use a tulip intake valve in the SD 455 engines. Visually it's almost identical to the RAIV valve but has a 45° valve face and it's shorter.

__________________
Go fast, see Elvis!
www.facebook.com/PaulKnippensMuscleMotors

Reply With Quote

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Forum Rules

Forum Jump

All times are GMT -4. The time now is 08:50 AM.

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

Menu

About Us