I'm thinking about going the 351w route, and stroking it and building it while its at the shop, and then throwing it in my car...heres my question: How much can I expect to pay if I pick up a used 351 block, stroke it to over 400ci (ideally 427), and throw on a really nice H/C/I combo. Forged internals would also be something that interests me to be safe. I can get the block for cheap, and i know how much the H/C/I will cost, but it's everything else that worries me... -craig
My original block with 45,000 miles in a 94 Cobra was priced at $9300 for a 347ci...and that was with the understanding that it wouldn't be "quite finished". Just a thought.
I pulled a 351 out of a wrecked '91 F-150 for $250. I gave a well known ford engine guy $4,000 and he provided me with afr heads, custom cam, forged crank, h-beam rods, forged aluminum pistons, and a few other goodies. I All in all, it cost me around $7-8 grand just for the swap.
might be a little cheaper...you're just paying for 351 specific parts for the car...only difference is when you stroke it is a different rotating assembly which might cost more, but a forged 351 engine is going to cost you some money unless you do a budget 393...I don't know how but you can use some stock parts and get some pretty decent torque and power. You'd have to do a search on that or wait for somebody else to chime in about that.
machine work can run anywhere from 500 to 2500 depending on what you get done. i ended up shelling out almost 4000 to my builder, most of it labor charges ... i had alot done. i think a 351w stroker kit with a forged crank runs about 1500 or so not stroking it saves the cost of the crank and the rods which are strong enough, especially if you are staying n/a, so all you are buying is a rebuild kit with forget pistons which runs about 500 at summit other costs: - link bar lifters if the block is not setup for hyd cam and you want to stay hyd cam: 450 (small base circle cam is not recommended) - headers: 250 to 1000 depending - fuel rail extender to fit around the intake: 100-300 depending - 351 dizzy: 150 or so - oil pan: 150-300 depending on which one - injectors because stock ones will no longer cut it: 250 or so
thanks for the tips....im also curiuos, what is the maximum power you can squeeze out of a really good H/C/I combo on a stock 351 block? And what will the block split at? The 302's seem to peak out right around 300rwhp or maybe a little more...
pre-1975 blocks are stronger. they will withstand up to about 600-650 at the wheels or so. stay away from 75-85 blocks, they have a bad reputation most people say a 302 block is good up to about 400-450 at the wheels (of course you need forced induction to get there though) you can get 325-350 at the wheels n/a out of a 302 if you match it up right. holley intake, afr 165 (or 185 if you rebuild the bottom end), custom cam ...
Plan on spending about 50% more than your original plan. HAHA Its true, you will always go over budget.
there are some killer 351 stroker n/a combos out there, but low-5.0's combo is right up there with the best of what i have seen so far. he must be putting out about 550 at the flywheel. i hear if you go all out, you can get 500 at the wheels out of one, but i have yet to see a combo that puts down much more than 450 at the wheels. things like extremely radical cams, titanium valves and shaft rockers start becoming the difference at that level ...
Talk to Jim at http://fordstrokers.com/index.php?target=categories&category_id=60 He can fix you up w/ exactly what you need and hiscustomer service is great! His 351 stroker kits range from $930-1500
With a GOOD H/C/I, count on at least $7-8K. AFR 225 heads are around $2200 new. Then the intakes are a little higher than the small 302 one's. I think I paid around $700 for my Victor. Good headers and exhaust will be close to $1000. If you go with cheaper heads and buy mostly used parts, you can have one running for $4-5k. Mine was in that $7-8k range. A professionally built 427 with all new parts will be in the $12k range.
Rule of Thumb Application: Mostly Street Drivability: Near stock Induction: NA Tune: Custom One RWHP for every Cubic Inch Grady
thanks guys. When I asked what the most power you can squeeze out of a stock 351 block, I meant without stroking it. There is no way I can be putting more than 7k into my car right now. I never thought it would cost that much. So here is my new idea: Buy this 351 block that ive been eyeing...and just do forged internals with a slightly used and "not quite top of the line" H/C/I and throw it in my car. Do you guys think its possible to see 400rwhp with bolt on hci 351w?
probably not ... 400 at the wheels is close to 500 at the flywheel. that is more 393/408 territory, or top of the line h/c/i/ stuff. but i think you could reasonably expect to make 350 without much trouble, and that motor would put out MUCH more torque than a 302
Here's my take - take it or leave it: I expected that because my n/a 306 had more peak HP than my 5.7 LT1, it would be more POWERFUL. The 5.7 had a LONG TQ band that the 5.0 was missing. A n/a 302 much over 1rwhp per c.i. will begin to lose more low end. In my o that means no fun. So you get gears and move up with the power band but your power band still is SMALLER. So-> you could have a 302 all "radical"-ed out that puts down as much peak HP as a 347 BUT the 347 will be much more powerful because it will have power down low AND up high and the 302 will be missing a HUGE CHUNK of usable power over the same RPM power band. That's what I wish I would have known when I got started. Take the example where some have done a 302 H\C\I on and automatic and it gets WORSE times at the track and verall performance. They have to get gears and stall and move the powerband up to make it go at all!! Take the same car and drop a 331 or 347 of the same HP level and you won't need gears or stall and it will rock and better than the 302. Now I am not trying to BASH the 302 and especially not one that is blown but down low she just dont go.
Craig There is just no cheap way to find performance that is substantially more than the typical bolt on combo. I would say the same goes for a h/c/i combo that has the same benefits Mr. Pokageek was talking about above. Now with the focus of staying on the Cheap Yes ... You can build more performance from OEM parts but Again ... Like Mr. P tried to point out above There is more to it than ... Peak HP It will set you back some cash to get your 94-95 Stang Windsor Ready ... btw I'd advise you to closely look at all the various combos to get a bigger pic of what is available. Hope that makes sense Grady
You can easily make 400 rwhp w/ a 357, but its gonna cost you, you will need a custom cam, maybe some canfield 195's and a short runner intake. cam $400 heads $1400 intake $600
