Re: 427 TUNNEL PORT
Im calling BS on the 427 TP. You may have been around 427's your whole life, but I've been around both, and I'll tell you now that a properly built BOSS 429 will destroy a 427 TP any day.
The Boss 429 made more power, it was designed specifically for the high RPM's of the Superspeedways.
Huge intake ports dont make the whole motor. You are way wrong in saying the Mopar Hemi is no threat either. You've obviuosly never been anyhere near a good running Hemi.
The 427 TP was a ban-aid fix at best. Im not knocking it for its mechanical abilities, Im telling you that it was a last ditch efort on Fords part to stay competitive with Mopar Hemi's after the 427 Cammer was banned.
Because there was no way in hell that a 427 Medium Riser was going to hang anywhere near a fire breathing Hemi Mopar!!
So Ford quickly came up with the Tunnel Port head and intake setup for the 427 block. But right away, they were already at work on the new Boss 429 Hemi engine for NASCAR.
There is no way that a Tunnel Port cylinder head can move as much air as a Boss Hemi head can....no way in hell.
And more air into and out of an engine means more power, period!!
Also, the 429 Boss did'nt need side oiling because the engineers got the standard oiling correct in the first place.
Last edited by TorinoStyle2; 10-24-2009 at 11:40 AM.