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Old 06-20-2013, 09:53 PM
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some insight on my 327 build

Well... I've got the big parts to start this project but I still need to order a few things and would like advice and expected power number estimates if possible.

a little history on the car. I got it with 120,000 miles on it and the motor was rebuilt at some point. How far exactly I don't know. Its the factory engine. 327 235 hp with boat anchor heads. Someone put an edelbrock 1406 on it but other than that everything seems stock so far. Pistons unknown until teardown but I plan on new anyway. I picked up a set of low mile 906 vortec heads (the 15* exhaust cut ones) and a solid flat tappet elgin 1090 cam (something like .537 .557 specs on their website which I can add later. 3500-7000rpm. Matching valve springs yadayadayada. Pete jackson timing gear set. Edelbrock super victor intake. Long tube headers. Pertronix flamethrower d1001 hei.

Now...

What spark plugs would be recommended?
I would like to get as much compression as I can so what pistons should I order?
I will be on 1.5 roller rockers.
What head gaskets do you reccommend?
I will be ordering between a 3200-3500 stall for my built th350 and 3:23s in the rear.

What kind of numbers will I expect to see?

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Old 06-20-2013, 09:59 PM
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the parts dont seem to match well?vortec heads need a lot of work to use that cam.

super victor intake? seriously?
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Old 06-20-2013, 10:43 PM
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cam and heads are gonna be havin a powerr struggle those heads are made for pickups (towing torque).! Something like a bowtie head from speedway for a 1000 bucks would probably work better!
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Old 06-20-2013, 11:12 PM
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Heads will be taken care of. There is a method to my madness don't worry. The super victor is my local option in which I have not made up my mind on yet. What's wrong with it that your all stingy about it exactly...
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Old 06-20-2013, 11:51 PM
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What the guys are saying is you really need to do some more research into matching the parts combo so your engine will perform to it's fullest. Is this a street or race engine? if street then the cam is way too big, the super victor is wrong ... race stuff and you never pick a cam until you know what your compression will be. A high rpm race engine like you are designing would need a 4000-4500 stall conv and 4.56 gears, those 3.23's would absolutely kill your combo.
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Old 06-21-2013, 12:05 AM
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And then what intake would you suggest? I would love to go with a much higher stall and gear setup as this is mainly a racer (or will be)... but I do see myself occasionally taking it on cruise nights etc and would prefer not to totally drown myself out all the time. Its more of a screw around car more than anything I guess since I already have my 02 ta in the low 10s and my 68 chevelle as my show cruiser. I had this cam from my circle track days and I absolutely loved it and I always wanted to put it in a street vehicle. I was running ~11.5:1 in that motor and would like to get it in the ballpark of that on this. I know what the cam needs to run and I guess I'm kinda shooting myself in the foot to want it in a street"able" car haha. I was thinking of bringing it down to something like a 280 cam or somewhere in there. This is more just a thoughts and input thread to get grounded. And I'm glad you guys are giving me a quick slap on the wrist actually to help me break down and just completely build this thing from scratch. So I guess what would you guys say on cam and intake assuming I go to 10.5-11:1 and well worked 906s. Ill stick with the 3:23s and 3500 stall max.
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Old 06-21-2013, 01:30 AM
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Brodix track one heads, 4, 7 swap roller cam 650 ish lift, victor jr. intake with a two inch spacer and an 800 cfm holley bolted on top. Now in the bottom end SRP flat tops, manley h beam 6" rods lightened knife cut faactory steel crank four bolt main nodular iron main cap block. Rev kit and stud girdles for strength. this is 10.5:1 motor runs ok on 91 octane and nasty as all hell. SERIOUSLY!! its a 355 not a 327.
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Old 06-21-2013, 02:06 AM
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And then what intake would you suggest? I would love to go with a much higher stall and gear setup as this is mainly a racer (or will be)... but I do see myself occasionally taking it on cruise nights etc and would prefer not to totally drown myself out all the time. Its more of a screw around car more than anything I guess since I already have my 02 ta in the low 10s and my 68 chevelle as my show cruiser. I had this cam from my circle track days and I absolutely loved it and I always wanted to put it in a street vehicle. I was running ~11.5:1 in that motor and would like to get it in the ballpark of that on this. I know what the cam needs to run and I guess I'm kinda shooting myself in the foot to want it in a street"able" car haha. I was thinking of bringing it down to something like a 280 cam or somewhere in there. This is more just a thoughts and input thread to get grounded. And I'm glad you guys are giving me a quick slap on the wrist actually to help me break down and just completely build this thing from scratch. So I guess what would you guys say on cam and intake assuming I go to 10.5-11:1 and well worked 906s. Ill stick with the 3:23s and 3500 stall max.
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Old 06-21-2013, 05:14 AM
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Id forget the gear drive and invest my money elsewhere. Like a nice set of heads and some bulletproof valvetrain.
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Old 06-21-2013, 05:31 AM
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OK,simple;how many horses are you expecting to get from this beast?
What RPM range are you looking to run this engine?
Are you looking for circle track type power,if so,short track or long track?
would you prefer drag race type power?would you like road race type power?
If you are building a race engine that occasionally sees the street,then buy race pieces and just use race gas for the occasional street car show etc.
If you road race/gymkhana and its a street car then seriously consider EFI on a single plane intake,nothing bigger than a Tarantula or scorpion.If you use a torker,make sure its not the torkerII

after you decide the power and rpm range,then you look for the heads.H.P. is not cheap,,,,
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Old 06-21-2013, 05:49 AM
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I looked up the cam specs on your cam and I kind of see what you were trying to do. 99 intake center line,WoW!!! If you used that cam and intake with an 850 carb,the power band would be between 6,000 and 8,000 RPM.the vortec heads would have enough flow for about 6,000 rpm.If you used AFR 220s then you would make power to 8,000 RPM and probably make way over 500 hp.
The idle would be nasty with that much over lap.This is a good time to use Fbird88 s locked out timing for the tune.
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Old 06-21-2013, 08:03 PM
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Everything depends on the available fuel. Will you run methanol or ethanol or E85 or race gas or premium pump gas or a blend of molasses and vinegar or what?

If you have E85 or other premium fuel readily available, then you can build the motor 15.0:1 and run it on the street every night.
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Old 06-21-2013, 09:01 PM
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3.23s ain't gonna cut it.
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Old 06-22-2013, 01:26 AM
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gear ratio

Quote:
Originally Posted by cobalt327 View Post
3.23s ain't gonna cut it.

I agree that 3.23 is not enough for drag racing,,,for road racing they might be good
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