Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by:
Sponsored by: CARiD

305 w/ 327 parts. help?

Thread Tools
 
Search this Thread
 
Old Jun 9, 2009 | 05:46 PM
  #1  
t/agta's Avatar
Thread Starter
Member
 
Joined: Sep 2007
Posts: 173
Likes: 0
From: pittsburgh, pa
Car: 87' Trans Am GTA, 88' Trans Am GTA
Engine: 350 TPI
Transmission: 700R4
305 w/ 327 parts. help?

i have a carbed 305 and i found a guy selling Camel Back heads from a mid 60's 327, I believe they are 2.02 / 1.60's, and a Weiland SBC hi-rise intake, part number is 7546. Will this stuff bolt on? I plan on cleaning up the heads with my porting kit and resurfacing them before i throw em on if they'll even work
Reply
Old Jun 9, 2009 | 06:53 PM
  #2  
Apeiron's Avatar
Moderator
 
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: 305 w/ 327 parts. help?

Neither of those is a good idea. The heads won't have the bolt holes to mount your accessories, and the single-plane intake will lose all your low-end torque, and won't mount the factory Quadrajet if that's what you're using.
Reply
Old Jun 9, 2009 | 07:09 PM
  #3  
AlkyIROC's Avatar
Moderator
25 Year Member
Liked
 
Joined: Jul 1999
Posts: 17,264
Likes: 168
From: 51°N 114°W, 3500'
Car: 87 IROC L98
Engine: 588 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: 305 w/ 327 parts. help?

The 2.02/1.60 valves also won't fit into the tiny bore of the 305 block.

You're better off buying a new set of aftermarket heads like Dart Sportsman. They'll be better heads right our the box than those old camel heads even after you do a bunch of work to them.

Leave the 30+ year old factory parts to the restorers. The aftermarket has come a long way and there are much better parts available.
Reply
Old Jun 9, 2009 | 07:31 PM
  #4  
t/agta's Avatar
Thread Starter
Member
 
Joined: Sep 2007
Posts: 173
Likes: 0
From: pittsburgh, pa
Car: 87' Trans Am GTA, 88' Trans Am GTA
Engine: 350 TPI
Transmission: 700R4
Re: 305 w/ 327 parts. help?

do you guys have any recomendations for cheap upgrades? would i get anything out of ported 350 heads? The motor in the car is from an early 80s truck. Its a non electronic 4 barrel rochester carb
Reply
Old Jun 9, 2009 | 07:53 PM
  #5  
Apeiron's Avatar
Moderator
 
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: 305 w/ 327 parts. help?

Ported 350 heads will get you less power, due to the loss in compression.

What's your idea of cheap?
Reply
Old Jun 9, 2009 | 11:39 PM
  #6  
Air_Adam's Avatar
TGO Supporter
 
Joined: Oct 2002
Posts: 9,067
Likes: 1
From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Re: 305 w/ 327 parts. help?

Why not keep your stock 305 heads? They are actually quite good, performance wise, for a factory castings. They will support as much power as the old double humps will. They have a similar chamber design (and actually a better one if they are the 601s) and the ports are the same size - the stock 305 heads flow quite well compared to the old double hump castings.

If you have 601, 416, or 081 castings on your 305 - keep them. They are as good or better than the double hump heads, especially for a 305.

For an intake manifold - I'd suggest Edelbrock's 'Performer RPM Qjet'... its the same as the Performer RPM, which is an excellent intake manifold, but it will mount both styles of carb (normal RPM will only mount a square bore carb, like a Holley)
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Billgluckman
Members Camaros
36
Nov 24, 2015 07:29 PM
1990FirebirdGTA
TPI
3
Sep 22, 2015 07:26 PM
OC305RS
Tech / General Engine
17
Feb 16, 2002 08:28 AM
RMK
Tech / General Engine
2
May 8, 2001 04:20 PM
JC88Camaro
Tech / General Engine
16
Sep 22, 2000 12:55 AM




All times are GMT -5. The time now is 01:44 PM.