Which is the best stroker kit for the money and why? I've heard either Scat
or CHP 408's are the best all around kit for the street. This would be going
in my '69 Sportsroof as a summer and weekend car. It'd only see the 1/4 once
a year at Bandimere for the "All Ford Day". Might consider a few solo road
courses just for fun, but nothing major. Should I just leave it alone as a
408 is the best performing setup. The most economical is the 393 which is a
302 piston, 351w rod, and custom stroke crank.
The biggest thing for any stroker is heads. If your going to put a stock or
small head on a stroker you will not have very much top end. Granted you
will have more low end torque, but it will run out of breath very early.
IMO for a 351w based stroker I wouldn't run anything smaller than a 200cc
intake port volume like the AFR 205s or Edelbrock Victor Jrs. You might get
might be all right with an AFR185 on a 393 setup since you don't want to run
it to hard. Of course the other downfall is gas milage. Adding another 50
cid will make a moticable hit on the mpg, and it will be really crappy at
first since you won't be able to keep your foot off the floor. :)
I have a CHP 347 kit and I have been very happy with it. Scat makes good
stuff as well so I don't think you'll go wrong either way.
I found my cfm vs. cid chart
For example my Performer 5.0 heads flow 230 at 600 lift. So at 302 cid they
are maxed out at 6844 rpm, at 351 cid it drops to 5678rpm, and at 408 its
down to 5111 rpm. Thats not to say you won't pull more rpm, but after that
point you won't make any more power. To spin a 408 upto 6500 you would need
at the very least 295 cfm from the head and then it would be maxed out. So
I guess it all comes down to how much do you have to spend.
Let me clarify: to make a 396 stroker out of my 351W. All I need is
standard 302 pistons with the standard 351W rods I already have in the
motor, and either the Scat or CHP 396 stroker crank. Is that correct?
First its 393 not that darn chevy motor! lol
The only thing you have to watch out for is you'll want a deep dished 302
piston to keep your compression ratio down. IIRC if you have a 60cc head
you'll need around a 24cc dish to keep it around 10.5:1. If its a mild
motor a set of the Roush 200/Windsor Sr. heads with the 69cc chamber will
make piston selection easier.
Another thing to keep in mind is most stroker cranks will need to be
Yeah, I slipped on that one after doing a bit more research.
Yeah, I called FRPP yesterday and was told flat out that I'd blow up the
motor if I ran flat tops. :) They suggested Ford Part #M-6108-C392 302
piston with 15cc dish and AFR 185 heads.
FRPP suggested the AFR's, but I did look at the Roush/Windsor Sr. heads. I
was concerned that the intake port volume would be too big at 210. I asked
FRPP about AFR 205's and they said that unless I was wanting to run a high
RPM motor that I'd be wasting the money on the bigger port volume. The tech
guy ran the compression numbers and said I'd be at 10.1:1 with the AFR 185's
and the FRPP dished pistons including the head gasket. I think he did the
calc with 392cid instead if 393cid though. I did the displacement calc and
it's really just under 393, but not 392.
Most definitely. I've got an engine builder I trust with all that. He just
finished a hot little 302 (now 310) that we dropped into the 'Chero.
I checked again on the Windsor Sr. and Roush heads, they're both 64cc
chamber heads with 200 intake runners. The AFR 185's are 61cc combustion
chambers and the other head I was looking at is the FRPP GT-40X head which
is a 64cc chamber, but doesn't flow as well as either of the other two.
Intake ports on the Ford head is 170 and they flow 30cfm less on intake and
20 less on the exhaust. I'm not looking to build a high revving motor, so I
don't think that will matter much. Plus the Ford heads are $200 cheaper.
Some mo' ideas:
Of course, after you do all the figgering on a stroker, it become
evident that building a hot 390 FE is cheaper. The stock ports are
bigger than Windsors, or you can use these:
I saw those earlier this week. Thanks for the link though.
But then I gotta start totally from scratch. At least with the stroker I
already have the block, the rods, the intake and the carb and could use the
'69 351W heads if I had to. Although they wouldn't flow the greatest and the
compression would take a bump upwards. All I'd need to buy is the crank and
the pistons. CHP has the 393 crank for only $220. Pistons would be in the
$300-400 range through the local jobber. If I'm gonna do a stroker I need to
do it now while the block is out of the car and worry about upgrading the
top end later. As long as I use at least a 15cc dish piston I'll be OK with
The 408 is probably the best performing stroker available. It's about
the most displacement you can get and still run more than 6500 rpm's. I
think Coast High Performance has one of the best reputations.
I have two friends runing the 408 stroker's. One of them is running a 76mm
turbo on it (I think it is 76). The other one is running a T64 on it.
They are incredible engine's and get driven to the track almost 30 miles
when they run them. Otherwise, they are using them on the streets.
This would be
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com ).
Whoa!! My friend has a T76 on his lightning with a stock GT40 351W. I
know how fast that truck is and I can only imagine what a mustang with a
408 and a 76 mm turbo would be like. That must be a hell of a ride.
'94 white lightning
I'm going to build a 427W later this summer for my '89 LX. IMO, it
doesn't make sense to install a 351W engine and not stoke it. I'm going
to buy a stroker kit and find a used block and have a local machine shop
do the work. This is about the only way I can know it will be done
right. It doesn't matter what major engine builder or parts company you
use because they all have people praising and complaining about them.
I'm going to roll the dice with a good local builder. At least I know
where to go if there is a problem.
66 6F HCS wrote:
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.