This is topic rebuild 347 in forum Tech Talk at Northern California Ford Owners  .


To visit this topic, use this URL:
https://californiafords.com/cgi-bin/ultimatebb.cgi?ubb=get_topic;f=6;t=005087
Posted by 50PrNcEsSGT (Member # 2308) on :
 
my friend is going to have his 50 rebuilt to 347 does anybody know a good shop to take it in the east bay
 
Posted by MR GO FAST (Member # 2088) on :
 
how about john b...isnt he looking for side jobs?
 
Posted by JohnB (Member # 969) on :
 
I'd do the install, but I am WAY too swamped to do a shortblock buildup. I am just now caught up from all the jobs I've been offered.
If you want to save some $$$, buy the rotating assy complete..and take the block in to have it clearanced and installed. Most kits come pre-balanced. If you need any info on shops I've dealt with, drop me a PM.
 
Posted by Bounty Hunter (Member # 1422) on :
 
Try Watson racing engines in Concord. They build some nice stuff! Talk to Mike Blackstone.
 
Posted by turbo302 (Member # 2786) on :
 
We do 331's and 347's. If your friend plans on daily driving his car I would recommend a 331. The problem with the 347 as a daily driver is most of the piston pins in the 347 kits intersect the oil groove (due to short pistons) resulting in increased oil consumption. The 347 also puts excessive wear on the rings from low rod ratio. A few companies have kits that raise the oil ring groove above the pin hole, but the catch to these 347 kits is that they cost more $$$, and even then you could still run into the area above the piston crown being so thin that the piston is prone to breaking at the ring lands, if you have even a little detination '91 octane CA pump gas (no guarantee with CA gas). Non-daily driver race motor, you could go 347 due to longevity not being an issue.
The 331 has a better rod to stroke ratio, which is almost the same as a stock 302, which means the side loads on the 331 are almost identical to a stock motor. The other plus is you get the piston pin out of the oil groove due to a shorter stroke. These are some things to think about when building a stroker motor with a 302 block. 351's make better stroker motors. 302's are good up to a 331, after that it's hit or miss as far as longevity. Check out my website for info. on some of the engine building we do (I just finished building a 342 for a customer, right now I'm working on a 351). Hope this info. helps your friend.

[ August 13, 2003, 05:32 PM: Message edited by: turbo302 ]
 
Posted by 50PrNcEsSGT (Member # 2308) on :
 
thanks everybody for your reply [Smile]
 




Fueled by Ford Mustang Owners
on CaliforniaFords.com