New engine build advice
Thread Starter
Joined: Oct 2008
Posts: 2
From: South Dakota
New engine build advice
First of all hello everyone I am new to this site. I don't have a mustang but I figured this would be the best place to get advice. I am new to the V8 world and I have a 1969 triumph TR6 that used to have a 302 in it befor the transmission blew. I am planning a new engine build but I need a lot of advice. I was to stroke the 302 out to a 347 and would like to make 400 or so HP on pump gas (any octane we have up to 91 out here) This is my list so far but I am sure you have better recommendations. I have nothing but the block and it's a 72 302 block that will be bored over .030 for the stroker kit.
Scat Stroker Kit
Ford 5.0L/5.8L Performer Aluminum Cylinder Head
Performer 390 intake
With this setup I would probably get dished pistions to drop the CR down. With that stroker kit and a 64CC combustion chamber it has about a 10.9:1 CR but those heads only have a 60CC combustion chamber. I know I am missing a ton of stuff I would appricate any advice. I was thinking about doing the hydraulic roller cam conversion but would like advice on that to.
The car will be used for drives on nice days and every once in a while it will see the track.
I plan to run a Tremec TKO 500 transmission
Thank you in advance
Edit: Would something like this be a better way to go for the bottom end http://www.fordstrokers.com/diy-libe...rt-blocks.html Are those solid cam or hydraulic roller?
Scat Stroker Kit
Ford 5.0L/5.8L Performer Aluminum Cylinder Head
Performer 390 intake
With this setup I would probably get dished pistions to drop the CR down. With that stroker kit and a 64CC combustion chamber it has about a 10.9:1 CR but those heads only have a 60CC combustion chamber. I know I am missing a ton of stuff I would appricate any advice. I was thinking about doing the hydraulic roller cam conversion but would like advice on that to.
The car will be used for drives on nice days and every once in a while it will see the track.
I plan to run a Tremec TKO 500 transmission
Thank you in advance
Edit: Would something like this be a better way to go for the bottom end http://www.fordstrokers.com/diy-libe...rt-blocks.html Are those solid cam or hydraulic roller?
Last edited by tegguy; Oct 16, 2008 at 04:35 AM.
D.R. THE PATHETIC DORK
Joined: Jun 2007
Posts: 30,871
From: West Virginia
First of all hello everyone I am new to this site. I don't have a mustang but I figured this would be the best place to get advice. I am new to the V8 world and I have a 1969 triumph TR6 that used to have a 302 in it befor the transmission blew. I am planning a new engine build but I need a lot of advice. I was to stroke the 302 out to a 347 and would like to make 400 or so HP on pump gas (any octane we have up to 91 out here) This is my list so far but I am sure you have better recommendations. I have nothing but the block and it's a 72 302 block that will be bored over .030 for the stroker kit.
Scat Stroker Kit
Ford 5.0L/5.8L Performer Aluminum Cylinder Head
Performer 390 intake
With this setup I would probably get dished pistions to drop the CR down. With that stroker kit and a 64CC combustion chamber it has about a 10.9:1 CR but those heads only have a 60CC combustion chamber. I know I am missing a ton of stuff I would appricate any advice. I was thinking about doing the hydraulic roller cam conversion but would like advice on that to.
The car will be used for drives on nice days and every once in a while it will see the track.
I plan to run a Tremec TKO 500 transmission
Thank you in advance
Edit: Would something like this be a better way to go for the bottom end http://www.fordstrokers.com/diy-libe...rt-blocks.html Are those solid cam or hydraulic roller?
Scat Stroker Kit
Ford 5.0L/5.8L Performer Aluminum Cylinder Head
Performer 390 intake
With this setup I would probably get dished pistions to drop the CR down. With that stroker kit and a 64CC combustion chamber it has about a 10.9:1 CR but those heads only have a 60CC combustion chamber. I know I am missing a ton of stuff I would appricate any advice. I was thinking about doing the hydraulic roller cam conversion but would like advice on that to.
The car will be used for drives on nice days and every once in a while it will see the track.
I plan to run a Tremec TKO 500 transmission
Thank you in advance
Edit: Would something like this be a better way to go for the bottom end http://www.fordstrokers.com/diy-libe...rt-blocks.html Are those solid cam or hydraulic roller?
your combo won't yield 400 hp with a 64 cc head and a dished piston you won't be at 10.9 to 1 cause with a flat top and 58cc heads I'm at 10.5 to 1 also performer heads on a 347 are all wrong = to small and performer 390 is just that = for a 390 not a 302/347, you need a performer rpm or victor jr for a 302/347 and as for cam choice when you get the shortblock from ford strokers, have him refer you to his cam guy Jay Allen and build you a custom cam for a 400 hp recipe
Thread Starter
Joined: Oct 2008
Posts: 2
From: South Dakota
Thank you for the advice. How easy is it going to be to get 400 WHP out of a 347 stroker while still keeping it on pump gas and streetable? Also what is reasonably CR to run with pump gas?
Last edited by tegguy; Oct 16, 2008 at 09:41 AM.
5th Gear Member
Joined: Sep 2003
Posts: 3,105
From: Phoenix, AZ
Agreed on the CR. I have 61cc heads and the pistons are flat tops with a -5cc reliefd and I calculated 10.5:1. I have the SCAT stroker 347 in my block.
With my combination, it should be at around 400 at the flywheel.
With my combination, it should be at around 400 at the flywheel.
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