Gain extra benefits by becoming a Supporting Member Click here find out how!
Silver
Gold ***Platinum***
andylee32Boosted54 DOC396 (9)blue56 (12)pistol (13)
Gremlin (3)bobyone4dad (2)PLS (3)55sedanman50Ragtop (6)
MoboMac (3)jrogers885 (3)
longboard (6) jel1957 (6)
Rick Dorion (2)
Bowtie Crazy (5)
nauta (9)
cyclops (3)fonc (2)
Classic Performance Products Classic Parts
Ciadella Interiors American Auto Wire Art Morrison.com
Exile® Battery Keeper™ 6/12 volt charger w/ LED battery monitor
Low priced Genuine GM Auto PartsEcklers AutoMotive
Hellwig Products IncPerformance Rod & CustomClassic Industries
Impala Bob's Bob's Chevy Trucks Bob's Chevelle Parts Bob's Classic Chevy
 

Recent Hot Topics
Current Quote
"It only took me a day to realize i got really lucky finding the site and taking the time to sign up!"
~ New Member
Recent Topics
Join the Community today







Username Post: 327 with Vortec Heads        (Topic#197741)
557B210 
Contributor
Posts: 293
557B210
Loc: Jacksonville
Reg: 06-15-08
08-31-08 05:29 PM - Post#1512004    

I'm building up a 327 for my 55 and deciding if I should install Vortec heads...I'm looking more at MPG with this build than HP. The engine will be going into a 55 with a 200-R4 transmission and a 3:36 rear.

At first I was going to use an old set of lower compression heads ('68 327 with 2bbl) with 1.7 intakes/1.5 exhausts, econo cam, 180 degree intake, and quadrajet carb.

After hearing so many good things about the Vortec heads, I'm thinking about retrofiting my 327 with them...Does anyone have first-hand experienc with this type of build? Will I have to use dished pistons to lower my CR,since I would like to burn regular unleaded fuel?
david aka POPS
55/57 2DR B210


 
This Forum is Sponsored by

bobsclassicchevy.com
HYPR 
"12th Year" Platinum Supporting Member
Posts: 10448
HYPR
Age: 63
Loc: Shaking and Burning!
Reg: 07-19-01
08-31-08 06:41 PM - Post#1512049    
    In response to 557B210

Depending on cam and intake choice as well as carb sounds like a good plan that should make good power, deliver decent mileage and be very driveable.
I would look at possibly an RPM Performer intake or maybe an RPM Air Gap and perhaps a cam like the Comp Cams Hydro Roller like the XR264HR which has a nice low end torque and wide power band of 1200-5200 rpm, then rather than a 2bbl add a 570 cfm Holley Street Avenger carb. This arrangement would compliment your tranny and rear set up nicely. Nice MPG and power when you want it.
Bob
http://www.cardomain.com/ride/222599
To be born a Redneck is by chance, to live as one is by choice!
Preserving the Redneck tradition one day at a time!


 
557B210 
Contributor
Posts: 293
557B210
Loc: Jacksonville
Reg: 06-15-08
08-31-08 08:32 PM - Post#1512113    
    In response to HYPR

Hadn't planned on a roller cam...I don't know too much about retrofiting an old 327 with a roller cam...Have to research it...Don't know if it would be worth the extra $ involved for a daily driven street motor
david aka POPS
55/57 2DR B210


 
HYPR 
"12th Year" Platinum Supporting Member
Posts: 10448
HYPR
Age: 63
Loc: Shaking and Burning!
Reg: 07-19-01
08-31-08 09:54 PM - Post#1512127    
    In response to 557B210

The cost to retro-fit a motor to a Hydro Roller is not an expensive investment and for a street motor the advantages are many. For example:
Hydrolic Roller cams have more aggressive cam profiles than available on Flat Tappet Hydrolic cams which means more power than available on conventional Hydrolic Flat Tappet Camshafts, Reduced friction, Lower Maintenance, Reduced Valve Train Noise as well as a wider power and torque range along with better mid-range. Translation...more streetable.
Your choice, however if you are still not sold then here are some regular Hydrolic cam choices that come close:
XE262H which has a range of 1300-5600 or the XE268H which has a range of 1600-5800, but again neither can match the XE264HR which has a range of 1200-5200 which is a better match for your 200-4R tranny.
I would price up the cost of the retro-fit to a Hydro roller.
I did it and would never go back for a street performance driver.
After all what good is having all that power over 6000 RPM on the street?
For the street, the lower and wider the better IMO.
BTW, cost difference is about $150 worth it IMO.
Your car your choice.
Bob
http://www.cardomain.com/ride/222599
To be born a Redneck is by chance, to live as one is by choice!
Preserving the Redneck tradition one day at a time!


 
557B210 
Contributor
Posts: 293
557B210
Loc: Jacksonville
Reg: 06-15-08
09-01-08 07:17 AM - Post#1512278    
    In response to HYPR

Bob...The idea of a hydraulic roller is starting to grow on me...By the sounds of it, for the $150 difference, I think it would be worth it...Will have to go to Comp Cams web site and check it out...Sometimes I have to remind myself that I'm an old dinosaur that started driving his first trifive in 1964...Technology has come a long way since then..
david aka POPS
55/57 2DR B210


 
MilesB 
Member
Posts: 1288
MilesB
Loc: Melbourne, Australia
Reg: 04-17-06
09-02-08 01:22 AM - Post#1512991    
    In response to 557B210

$150? I was under the impression that a cam and lifter kit is about $150-200 for flat and about $450+ for roller? Plus the other parts that you need to convert..

Please set me straight!!
Photobucket


 
This Forum is Sponsored by

bobsclassicchevy.com
Icon Legend Permissions Topic Options
Report Post

Quote Post

Quick Reply

Print Topic

Email Topic

3270 Views
FusionBB
FusionBB™ Version 2.1
©2003-2006 InteractivePHP, Inc.
Execution time: 0.113 seconds.   Total Queries: 15   Zlib Compression is on.
All times are (GMT -0800) Pacific. Current time is 07:46 AM
Top