Here is my rough draft list of parts for a 331 combo i'd like to build. Please give me your comments good or bad, and what you would like to see added or taken out?


Coast High Performance “Street Fighter” 331 stroker Short Block
4.030” bore / 3.250” stroke
SCAT Cast steel crank
CHP CNC Beam forged steel connecting rods
Probe SRS forged pistons
8.5:1 compression ratio
Plasma-moly rings
Probe wrist pins
Clevite 77 rod & main bearings
ARP rod bolts
Energy Suspension polyurethane motor mounts
BBK cold air induction kit
Pro-M Bullet 75mm MAF
Accufab 75mm throttle body
Trick Flow Street or Track Heat upper and lower intake ?
58cc AFR 185 cylinder heads
high RPM valve spring upgrade
Viton seal upgrade
ARP 7/16 rocker studs
1.6 Scorpion roller rockers
ARP head-bolt kit
Engine Works pushrods
Eaton lifters
Custom camshaft ?
28oz. harmonic balancer
FRPP 30 lb./hr fuel injectors
Kirban adjustable fuel pressure regulator
Walbro 255lph fuel pump
MSD coil
MSD Heli-Core ignition wires
billet roller timing set
March underdrive pullies
PA peformance 130A alternator
Granitelli 3” aluminum radiator
EGR/Smog delete
BBK 1 5/8” Equal length short tube headers
BBK 2.5 inch X pipe with cats
Flowmaster American Thunder Cat back system

 

why the low compression ratio? are you going to supercharge it in the future? also pro-m went out of busineses so you will need to find a different mass airflow sensor.

 

go with 24lb injectors,you will need long tube headers,
fuel pump is to big, get the systemax intake.

 

id ssy the fuel pump is fine and so are the injectors. only thing i would change are the headers to lt's and like ford guy said, why so low on the compression. n/a ull want it to be at elat 10:1

 

i would say 10:1 compression too and a 190 fuel pump should be fine i posted a fuel pump info post earlier so look at it. How much HP are you looking for?

 

Ok sastang man do you know what your talking about bud? 24 pound injectors for a 331 is way to small. And also a 255 fuel pump is idea. Just get a fuel pressure regulator. Next get 61 cc heads. You can go custom grind cam but comp cams makes plenty for ur combo along with Anderson ford. Your combo is good but could be cheaper just to use DSS they have everything you need. Stay away from the holley system max youll need either the Eldelbrock Performer II or TFS track heat. Your new combo will rev past the stock computers 6200 rpm rev limiter. So youll need a chip for sure. Im building a similar combo right now .. and mine will make 450 to the crank! @6800 rpm. So consider your options and do your homework. Get long tube headers stay away from shorties. Also Pro M is still a good choice to use 75 MM is minum i would use maybe even a 80mm. just cause they have "supposedly went out of biz doesnt mean there stuff is crap. Dr Gas X pipe i think is better choice but that is personal prefence there. If you are serious about building a powerful engine that is NA just PM ill give you my specs to my 331. Good luck!

 

i have 24's and a 155 fuel on my stroker and it runs fine so NO they are not to small but if you are planning on big HP number then the 30's will be good but you only need a 190 fuel pump. I would say get the C&L 76mm MAF with the inlet tube for the most HP. Its a really good kit and i have it on my car and 2 of my family members do too and they say its awesome. Just do your research and you will be fine. just post the numbers when you get it done. im still finishing mine and im going to get it dynoed this summer so i will let you guys know the numbers i have

 

My question is: Is FI in your future with that CR? Turbo OR super?

 

Sorry, I forgot to mention that I want to add a blower down the road, so thats why I said 8.5:1.
I'm trying to keep the engine cost under $5,000. My uncles doing all the work at his shop so hopefully thats resonable?

 

that goin to be a killer combo. the main thing i see bad with it is the headers. deffinetly look into some long tubes and go with a custom cam. stay with the 58cc heads as they will be more emmisions friendly