well corvette has always can the highest horsepower ratings. Shortly the 365 and 375 horsepower vette motors are different. the L79 is the same in both early velles and vettes. Corvette guys kinda control GM and if they dont have the most Hp they whin. Why dont you think the LS6 made it into the 2002 SS camaro 35th. But the 327 with 350 horse is the same in both cars.

[This message has been edited by Monte-73 (edited 12-17-2002).]

 

The low horsepower 327s were also available in the Corvette and only differed from passenger car versions externally (air cleaners, valve covers, etc.).

ALL small journal 327s used a quality block casting and a forged crank and so were considered high performance engines in all HP ratings.

The 365hp and 375hp 327s were unique to the Corvette but the basic block and heads were the same as used on the 350hp 327 which was installed in Chevelles as well in 1965. Those higher horsepower 327s were gone in 1966 since they were replaced by high HP big blocks. The 350hp 327 remained and used the same basic set up for Chevy II and Corvette applications except that the Chevy II version had a relocated oil filter boss. In 1967 the 325hp (Chevelle) and 350hp (Corvette) 327s again used the same heads and block.

In 1968 the 325hp/350hp 327 was revised quite a bit but still used the same heads and block in Chevelle and Corvette applications.

 

The Vette 327 had a 7qt oil pan and windage tray that would not fit in the Chevelle and had Rams Horn exhaust with large dumps that would not clear the Chevelle cross member. The Vette had a Holly Intake with Holly Carb witch you could keep with the Chevelle.
Chevelles came with Carter carbs.
The Rams Horn exhaust may add a couple HP over the Chevelle Log type Rear dumps.
With the Vette you could get some cool looking cast Au rocker covers, Had to add 5 HP.

 

I'll add the one thing that wasn't said.
The "vette" motor that is the same as all the other motors will cost you twice as much because after all it is a "vette" motor.
You can build your own vette motor from any 327/350 block.

 

<BLOCKQUOTE>quote:</font><HR>The Vette had a Holly Intake with Holly Carb witch you could keep with the Chevelle.
<HR></BLOCKQUOTE>

Be careful here... Presently working on a 64 327 'vette so I found this out.
The 340-365 HP 327 has an aluminum intake (doesn't say holley on it anwhere) and used a 4Bbl Holley carb. The lower HP rated 300-325 327 used a cast iron intake and used Carter AFB carbs.

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Philip Mullaly
72 TPI El Camino
You can never fix a Ford,You can only work on them alot.
70 442
The Z-meano
Cowl induction injection

[This message has been edited by pmullaly (edited 12-18-2002).]

[This message has been edited by pmullaly (edited 12-18-2002).]

 

I think what was meant by the Holley intake was a reference to the bolt pattern for the carb, it is holley on the 365 intake.

1965 was the first year for the big block in a corvette. They transplanted the 396/375 motor into the vette and called it 425 hp. The carb was different, 3124A vs a 3310. Same compression, same heads, same cam.

The 327/365 motor used a Holley 2818 carb, 585 cfm, same carb on a 427/390 vette in 66.

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www.muncie4speed.com
Gold 67
A.C.E.S. 5602
M.C.C. 559
1967 Malibu, 2nd owner.
1971 Malibu, new rat is in. It's the details that take the time!
There is nothing like rowing through the gears at 7500. Stick cars are so much fun they should be a controlled substance!

 

Most of intakes I have seen, The Holly bolt pattern intakes has a Big "H" cast into it just in front of the carb. Q-Jet "R" for Roch. and "C" for Carter. I think all the Au Intakes have the Winter Snowflake.
In 67 Corvette rated the 300HP 327 at 300HP with a Holly, The rest of the Chevys got a Q-Jet and was dropped to 275HP. I think the only other dif was the Oil Pan and Exhaust.

[This message has been edited by Bob Johnson (edited 12-18-2002).]

 

FYI: For 1965 the 396 started life as a 425 HP engine for the full size passenger car and the Corvette. Over 2100 1965 Corvettes had this option installed, not sure about the full size cars. For the 65 Chevelles (all 201 of them) the engine was outfitted with a milder hydraulic cam and rated at 375 HP.

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Dave
My 65 Elky & 2002 Camaro SS
Tri Power #1,Tri Power #2
New Richmond 5-Speed
Fan/Shroud/PRC Radiator
Richmond Road Race 5-Speed, 3.07's

 

Wasn't one of those small block Corvette engines designated as the L-76?

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Leo Paugh
Maryland Chevelle Club #017
A.C.E.S.#3731
progress has little to do with speed, but lots to do with direction.
Maryland Chevelle Club

 

Leo, I think that was the 365HP with solid lift cam. It was in the 64 Chevelle sales Lit. But never came avalable. Only the 300hp. The L-79 you could get in 65 and that thing would push any "stock" SS396 off the showroom floor that came out in 66. JMOP

 

Here's something from an unreliable Chevy and Corvette engine source I have - I say unreliable because they call the 929 cam a 930, and the call the 151 cam 152...stuff like that.

As far as the L-76 goes, here's what they show:
1963 - 327/340, Carter carb, 097 cam, 461 heads
1964 - 327/365, Holley carb, 347(346?) cam, 461 heads
1965 - same as 1964 with 820 heads
That's it.

[This message has been edited by Glenn1018 (edited 12-18-2002).]

 

Thanks for the info.

 

To add to David's and Wally's posts, the '65 396/425 (as well as the '66 427/425) as used in the vettes and full size cars had unique exhaust manifolds that were not used in the Chevelles due to cross member interference.

Dan

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Awww, fer cyrin out loud, there's that IMPALA guy again.

http://photos.yahoo.com/bc/ss3964spd?d&.flabel=fld1&.src=ph