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!

305 into a 328?

Thread Tools
 
Search this Thread
 
Old 02-22-2004, 07:35 PM
  #1  
Senior Member
Thread Starter
 
Skatepunk60's Avatar
 
Join Date: Oct 2002
Location: Smithfield RI
Posts: 977
Likes: 0
Received 0 Likes on 0 Posts
Car: Hardtop 84' z/95' Cheyenne
Engine: 305 H.O./4.3L
Transmission: 5-speed manual/Auto
305 into a 328?

With a 400sbc crank i can make a 305 into a 328 .. but how easy is this? I have three 305s and i want to build one up for my z. I have on on the engine stande down to piston and crank .. can i just swap the crank? or do i need new connecting rods?
Old 02-22-2004, 07:37 PM
  #2  
Supreme Member

iTrader: (4)
 
Confuzed1's Avatar
 
Join Date: Oct 1999
Location: GO PACK GO
Posts: 4,211
Likes: 0
Received 2 Likes on 2 Posts
Car: 83Z28 HO
Engine: Magnacharged Dart Little M 408
Transmission: G Force 5 speed
Axle/Gears: Moser 9" w/Detroit Trutrac
I think the 400 is a large journal crank. It would take some machining to make it fit.
Old 02-23-2004, 04:59 AM
  #3  
ede
TGO Supporter

 
ede's Avatar
 
Join Date: Aug 1999
Location: Jackson County
Posts: 14,811
Likes: 0
Received 1 Like on 1 Post
differant mains, need to grind them down and differant pistons. sounds like a great way to spend more money for less power
Old 02-23-2004, 11:34 PM
  #4  
Moderator

iTrader: (14)
 
five7kid's Avatar
 
Join Date: Mar 2000
Location: Littleton, CO USA
Posts: 43,169
Likes: 0
Received 36 Likes on 34 Posts
Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
This is a standard-305-bore version of the "famous" 334 stroker.

You either need short 400 rods, or special stroker pistons. You'll also need to clearance the block pan rails, and may need to get a small base circle cam to keep the rods away from some lobes. Don't forget the externally balanced versions of damper & flexplate.

As Ed said, it's a great way to spend more money for less power.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
pjsparts
Tech / General Engine
6
09-17-2015 01:28 PM
Ranbo108
Tech / General Engine
14
09-09-2015 12:20 PM
383cam
Electronics
5
09-09-2015 06:01 AM
rsrookie
Camaros for Sale
0
09-05-2015 07:08 PM
Formula_88AE
Engine Swap
1
09-03-2015 01:47 PM



Quick Reply: 305 into a 328?



All times are GMT -5. The time now is 06:11 AM.