409/425 HP 62 impala SS

[Jim Cation]

As I stated earlier just got my 409/409 and am still learning. Was it possible to order a 409 with solid lifters and a 425 cam from the factory? Then you would have a 409/425, right? Or was making it a 425 hp something you did after the factory?

 

[62impala409]

The 425hp was offered in '63 and '64. They changed the cam and exhaust manifolds to get the additional hp.Leo

 

[Jim Cation]

The 425hp was offered in '63 and '64. They changed the cam and exhaust manifolds to get the additional hp.Leo

The 425hp was offered in '63 and '64. They changed the cam and exhaust manifolds to get the additional hp.Leo

HMMMM! The owner told me my 62 impala SS 409 was a 425 hp version. He said it was one of the last ones produced in 62 and therefore had the 425 hp. Don't want to complain too much since it is still a 62 SS 409, just not 409/409. When it runs it has a lope like a different cam and it sounds like solid lifters. Thanks!!

 

[62impala409]

I do believe there was a service pak available from the dealers late in the '62 model year to upgrade the 409 hp motors to the 425 hp version that were coming for '63. I am sure others will chime in on this one. Leo

 

[Clyde Waldo]

All 409s in 1962 were solid lifter.

Pictures of 409 horsepower exhaust manifolds and 425 horsepower exhaust manifolds.

 

[62impala409]

HMMMM! The owner told me my 62 impala SS 409 was a 425 hp version. He said it was one of the last ones produced in 62 and therefore had the 425 hp. Don't want to complain too much since it is still a 62 SS 409, just not 409/409. When it runs it has a lope like a different cam and it sounds like solid lifters. Thanks!!

Jim, does your car have the 425 hp manifolds? If not, it has the 409 hp manifolds or headers. Leo

 

[Jim Cation]

Great info. guys!!!!!!! Evidently he was referring to the service pack. I will print off the pix of the exhaust manifolds. I assume the first one is 409 and second is 425?? Thanx

 

[MRHP]

Yes, second was service package late 62 . My car had them when I got them.

 

[Jim Cation]

THANX!

 

[dac62]

1962 service package manifolds were #923 and 924. 1963 and 1964 were #925 and 926.

 

[MarkVI]

Hello: A dealer service package was released in April 1962
425 hp cam
single point distributor
rocker stud pins
425 hp exhaust manifolds
the 425 hp cars were first built in May 1962
Mark VI

 

[MRHP]

mine were 923 and 924 along with the single point 006 distributor. Metallic brakes too.