I am just starting to scope out and budget an engine rebuild for my '65 Chevelle convertible. Engine is a bone stock "66 327-250hp with the exception of an Edelbrock EPS manifold, Edelbrock 600 cfm carb and Mallory HEI. Now, I am going to rebuild this winter and here is what I am thinking....

Stock Crank
Keith Black Silvolite Flat Top Pistons (9.5:1)
Stock Connecting Rods
Edelbrock Performer RPM Heads (#60899), 64cc, Straight Plugs
Comp Cams XE268H Camshaft (224/230@.050, .477/.480)
Re-use Performer EPS
Re-use Edelbrock Crab
Re-use Mallory HEI
ARP Bolts
1 5/8" Heddmen Headers

Any body have any comments on the setup...anything I missed or should look at as an alternate? This is my first total rebuild so I would like to hear any input you guys might have.

Is this just a cruiser with a pass at the track here and there? What trans do you have?

Cruiser...maybe at the track once or twice...just a nice quick fun driveable street car.

TH350...3.08 rear

Looks good to me. You may want a little more compression with the aluminum head and that cam but I'm not sure.

We got just under 10-1 on my Son's 327 with Speedpro two valve relief flattops and milling the block to zero deck height. Don't trust the piston manufacturers compression ratio claims, measure everything. I bet she'll run real good. With alluminum heads maybe even on 87 octane.

I'm new at this...any components in the list that may be out of line...pistons OK?

Did`nt you post this on another forum? sounds familiar.

I'd opt for Trick Flow heads. Be a good idea to budget for a 2600 rpm converter as well.

Mike

Maybe go a tad bit smaller on the cam, especially if you are not adding a 2600 stall converter, and you plan to keep the 3.08's. I think an XE262 would be better in a heavy convertible with tall gears. Just my opinion.

Originally posted by baddbob71:
Don't trust the piston manufacturers compression ratio claims, measure everything. I agree. However, KB seems to be pretty accurate on their CR specs. They use .040" quench and all but a very few check out correct. The 262 cam matches up a little better with the CR but the 268 will work.

Originally posted by wickster:


Stock Crank
Keith Black Silvolite Flat Top Pistons (9.5:1)
Stock Connecting Rods
Edelbrock Performer RPM Heads (#60899), 64cc, Straight Plugs
Comp Cams XE268H Camshaft (224/230@.050, .477/.480)
Re-use Performer EPS
Re-use Edelbrock Crab
Re-use Mallory HEI
ARP Bolts
1 5/8" Heddmen Headers

Anybody want to guess the horsepower & 1/4 mile times for this combo ???

Don't waste your time with Hypers. Most people I know (myself included) that put a Hyper motor together regret it. For a little bit more you have the peace of mind that a forged slug gives you and you put a little juice on it if you so desire.

Originally posted by Pony Hunter:
Don't waste your time with Hypers. Most people I know (myself included) that put a Hyper motor together regret it. :eek:
Better call GM and set them straight on all those crate motors being built...

Originally posted by Pony Hunter:
Don't waste your time with Hypers. Most people I know (myself included) that put a Hyper motor together regret itmy .030 454 has over 10K miles on it and many drag strip passes..the .100 domed hypers are doing quite fine,so your statement isn't valid in my application :D

I have hypers, my dad has put hypers in any build where someone asks for a little extra performance and we've had no problems. I'm sure for race forged would make more sense though.

Also I run that cam and I enjoy the way it works in my setup, but mines a 355.

Just something for added thought.
It would be TOOOOOOOO easy to increase your stock 327 to a 350. All that is needed is a 350 crank/rods. Have the main journals of the 350 crank turned down to small journal size and use the larger 350 rods. Also, the flange, between the rear main bearing and rear main seal journals, will need to be turned down just a little (I forget how much) so that it will fit into the smaller groove of the 327 block. Then, of course, you order 350 pistons instead of 327 pistons. With a .030 bore, you get a 355.
Now, just so that you will know, you can also step up your 327 to a 383 real easy also. A little more expense is required, but not much over building it into a 350.
To build it into a 383, turn down the mains on a 400 crank to 350 size. Next, have the 327 block line bored to the size of 350 mains (and have new bearing notches cut into the block/caps for 350 bearings). Use a set of 350 main studs instead of bolts. Also, like on the 350 crank, have the flange between the rear main and seal journals turned down a little. Use 350 rods and pistons for a 383 with a pin location for a 383. Also, when doing this, it will be necessary to notch the bottom of the cylinders for rod clearance. I WOULD NOT waste my time and money doing this, UNLESS the 327 was the ORIGINAL matching number block. Then I would do it in a heartbeat!

Don't get me wrong, My hypers have 110K on them also, and regularly see 7000 in my 327. I sure wish I had have used some cheapy PowerForged Speed Pro's. A 150 horse shot would be neat. I'll never build another engine that I can't feel safe with a little nitrous on.

Anybody want to guess the horsepower & 1/4 mile times for this combo ???

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1965 327 MALIBU CONVERTIBLE .60 over 327 , Comp Cam 262 XE
JW Built Turbo 350 W/ 2200 Stall , Rebuilt 3.73 10 Bolt Posi
I'd sure like tp know what your horsepower is??? Pretty damn close to what I am building....I've got a 2300 stall rebuilt TH350 as well....but still have the stock 3.08 gears.

Originally posted by wickster:
</font><blockquote>quote:</font><hr /> Anybody want to guess the horsepower & 1/4 mile times for this combo ???

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I'd sure like tp know what your horsepower is??? Pretty damn close to what I am building.... </font>[/QUOTE]So would I :D , All I know is It will rip the 1-2 shift, and chirp "D" everytime at full throttle !!! The 262 cam works great in a 327 , but I might do Lunati if I had to do it all again graemlins/thumbsup.gif

Lunati = 301A6LUN
276 276 221 221 0.454 0.454 0.303 0.303 110

Best performing REAL street cam. Lope at idle, works power brakes, etc. For 350-400 HOT 'daily-drivers', 4WDs, P/Us, etc.

Imho, a stock, about 10 to 1 CR., 327 with medium valve heads or big valve double-humpers if you can find them will run fine way up there with stock, el-cheapo cast flat-top pistons as long as you don't go wild!! (BUT I donno about using GAS???)...

And nothing more then a good old CC 268HE or Crane/Cam Dynamics 272/272 Energizer will make it run like the wind!!

just add a cheap set of 1.625" four tube, long headers and a good high-rise like a good old Holley 300-36 along with no more then an old 1850 Holley 600 cfm vacuum secondary carb. and you will have more fun then the law allows!!!

What you basically will have is a hopped up 300hp/327 motor AND I'm here ta say, it will run GREAT!!

pdq67