I've got a 69 ss396 w/ac & a 5500 rpm tach.
would this be a 325 or 350 horsepower engine.
any other ideas? the block had been milled
before I got the car.Thanks

It could be either one. Both had 5500 rpm redlines. The 375HP had 6500 rpm redline.

One big item I didn't mention is this an
a/c car with Turbo 400. Any difference now ?
thanks.Brian

375 HP engines were not available with AC, so it narrows it down to the 325 HP or 350 HP.

Rick

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'69 SS 396 L78
'81 GMC Caballero 4 speed
Team Chevelle Gold Member #152
ACES #560
NCOA #2615
www.veriotraining.com/mcc/jun99.htm (http://www.chevelle.veriotraining.com/mcc/jun99.htm)

Okay, I have a 69 SS with a 6000 RPM redline. What is the story on this one? My car also had a lot of other weird incorrect stuff such as El Camino body mounts.......

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Redrum
68 Corvette - 383 CI 427 HP
69 SS Chevelle being updated to Pro-Touring
97 Z-28

In '69 the L78 and L72 cars got the 6000 rpm redline tach.

Didn't know that, Keith. Learn something every day. Can't say that I've seen a 375HP without a 6500 tach. Was this a 69 only thing? Maybe I havn't paid enough attention to tachs. http://www.chevelles.com/forum/smile.gif

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-Mark TC# 717
ACES #1641
1967 Chevelle SS396/375
1964 Chevelle 283/195
1975 Corvette 396/375

<BLOCKQUOTE>quote:</font><HR>Originally posted by Keith Tedford:
In '69 the L78 and L72 cars got the 6000 rpm redline tach.<HR></BLOCKQUOTE>
What the heck is a L72 ?
I thought just 3 motors were offered,L35-325
hp, L34-350 hp,& L78-375 hp, Nobody has really told me if you could get 350 hp car
w/ac(I read somewhere that the 350 horse
motors came w/forged crank & fittings for a
engine oil cooler(located above oil filter)
Has anybody heard of that ?

The L-72 was the 427/425 engine installed in the Vette and Big Cars. Too bad it wasn't put in the Chevelles. It was the same as the L-78 except it was 427CI. Both had rectangle intake ports, aluminum intake, 11:1 compression, solid lifters, forged cranks, Holley 4-Bbl and 4-bolt main blocks. Only the 4-bolt main blocks had the fittings for the oil cooler. As far as I know A/C was not available on these engines.

Yes, A/C was available on the 325 and 350HP engines. These were 2-bolt main blocks, no fittings for the oil cooler, hydraulic lifters, 10.25 comp, oval intake ports and Q-jet carb. Most 350 HP had forged cranks but I have seen originals with cast cranks. 325HP had cast cranks.

Hope this helps. http://www.chevelles.com/forum/smile.gif

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-Mark TC# 717
ACES #1641
1967 Chevelle SS396/375
1964 Chevelle 283/195
1975 Corvette 396/375

The L72 is the 427-425 hp engine installed in the COPO Chevelles and Camaros. Our COPO Chevelle has the 6000 rpm red line tach.

[This message has been edited by Keith Tedford (edited 08-19-2000).]

[This message has been edited by Keith Tedford (edited 08-19-2000).]