1968 Road Runner '383' vs. 1968 Chevelle 'SS 396'

396/325 HP 'L-35'

* Lift........... .398"/.430"
* Duration..... 244*/286*
* Overlap...... 38*
* LSA............ 110.5*

* Valve Spring Load Rate..... #220 lbs.

The Engine was rated at 325 HP @ 4800 RPM's

The 396 'L-35' would tap out at 5300 RPM's. The 'Factory' Tachometer had a 'Red-Line'
at 5500 RPM's.

The NHRA did rate the 1968 396/325 HP at 325 Horsepower, until later dropping it
down {-5 HP} to 320 Horsepower in Stock Class.

Chevrolet/Isky/Crane and the rest of the aftermarket cam grinders sure took advantage of this,lol. 220 lbs psi full open on a 1.7 rocker ratio, geez.(s.m.h.....).