87 5.0 347 piston help
05-10-2011, 08:13 AM
#1
Thread Starter
Join Date: May 2011
Posts: 2
87 5.0 347 piston help
I have a 5.0 HO motor from a 87/88 mustang. I just baught a 347 stroker kit from eagle for it. Did NOT come with pistons (got on craigslist for 400$) Was wonder the size pistons I need.
I had a friend help me, he found pistons for standard bore (but came out to be almost 600$) Was wondering if going .030 over would open up room for other pistons and if so what type,and specs should I look for? If you want the info. I look'd up the pistons he found and wrote there numbers down here they are. This will be a NA motor. Im trying to push over 350. I have trickflow Cam,heads (trackheats) and intake.
4.0 Bore
3.4 Stroke
5.4 Rod
1.090Rcompheight
0.927 PIN
-6cc volume
Hope someone can help me or steer me in correct direction. Thanks.
I had a friend help me, he found pistons for standard bore (but came out to be almost 600$) Was wondering if going .030 over would open up room for other pistons and if so what type,and specs should I look for? If you want the info. I look'd up the pistons he found and wrote there numbers down here they are. This will be a NA motor. Im trying to push over 350. I have trickflow Cam,heads (trackheats) and intake.
4.0 Bore
3.4 Stroke
5.4 Rod
1.090Rcompheight
0.927 PIN
-6cc volume
Hope someone can help me or steer me in correct direction. Thanks.
05-10-2011, 09:17 AM
#2
2nd Gear Member
Join Date: May 2011
Location: texas
Posts: 254
When you put in a longer stoke crank you need either shorter rods or pistons with a different pin location, find someone that knows engine building and buy him a beer or 6. When you buy a stroker Kit, it usually comes with crank rods and pistons for that crank. The rotating assembly has to be balanced also.
05-10-2011, 02:32 PM
#6
4th Gear Member
Join Date: Jul 2008
Location: alabama
Posts: 1,812
When you put in a longer stoke crank you need either shorter rods or pistons with a different pin location, find someone that knows engine building and buy him a beer or 6. When you buy a stroker Kit, it usually comes with crank rods and pistons for that crank. The rotating assembly has to be balanced also.
you dont add shorter rods with a longer crank!
You dont have to use a set of 600$ pistons!
a .030 gets you 347, 4.000 gets you 342. and .040 gets you 349 cuin!
with a tfs toped 347 you will get your 350 hp easily!
05-12-2011, 09:13 AM
#8
Banned
Join Date: Dec 2005
Location: Lil' Rhody
Posts: 22,376