So i am looking at building a good street / strip engine. I came across this 427 fe engine that i was concitering buying. Its a early 70's block and it has mint bore and a new freshly ground crank. It comes with mid riser heads that need re done. Now is it expencive to get these heads re done or should i take the other set of low riser heads the guy has. Are the mid leval riser heads better or not really. It also comes with a portosonic intake and one 850 holley carb, adjustable rockers solid lifters, pushrods , isky cam, hi-volume oil pump, double roller chain ,a flywheel bellhousing and a big in big out toploader 4 speed transmition or a c6 with the stall convert. Only other thing this engine needs is pistions and rods.
Dose this sound like a good engine for around 4000. Or should i just buy a 390 or a 351. My final goal is around 450- 525 hp and for it to run on pump gas. I also don't want it to suck fuel when cruzing.
Leave me ur imput and anything it is greatly appreciated.
That is a very good price for that engine and the medium riser heads are the ones to get. Just make sure you ONLY use 1 piece stainless valves! The Ford sodium exhaust valves are a very dangerous time bomb and can destroy the block and at least 1 head when it goes. The Ford intakes are hollow 3 piece welded units and were often thin on one side, also dangerous. The block should have ribs on the side and be drilled for hydraulic lifters if it's a service block made after 1967. with the parts you have listed the engine should make 490 hp stock with ford's 324*degree, .500 lift cam. Just make sure you use the cap screw rods and bolts, known as the LeMans or SCJ rods.
You have a real find in that deal, don't pass it up.
A 427 has a shorter stroke than a 428/410, and may not develop as much low-end-torque, and if this is going into a heavy truck, might not be the right match. Might be better off finding a 428. Just sayin'
Editted for incorrect information - meant to say "428/410" and not "390"
__________________
- art k. - Moderator for the Superduty, V10, and FE forums
'01 F250SD SC SB XLT V10 4x4 auto 3.73 Warn hubs Volant CAI, eBay headers and y-pipe - 5-star custom tunes on SCT X3
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased! I've been wrong before, I'll be wrong again. Just wait and see. ®
Last edited by Krewat; 08-23-2010 at 09:48 AM.
Reason: [b]Editted for incorrect information - meant to say "428/410" and not "390"[/b]
A 427 has a shorter stroke than a 390, and may not develop as much low-end-torque, and if this is going into a heavy truck, might not be the right match. Might be better off finding a 428. Just sayin'
My books show 427 has a 3.78 stroke,, 390 has a 3.78 stroke,,, same.
My books show 427 has a 3.78 stroke,, 390 has a 3.78 stroke,,, same.
428 has a 3.98 stroke.
Sorry, that's true - thanks for catching me
__________________
- art k. - Moderator for the Superduty, V10, and FE forums
'01 F250SD SC SB XLT V10 4x4 auto 3.73 Warn hubs Volant CAI, eBay headers and y-pipe - 5-star custom tunes on SCT X3
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased! I've been wrong before, I'll be wrong again. Just wait and see. ®
That is Bull, I always got better than 15 mpg with dual 780s on the street.
In what, and doing what?
With a 427 with dual carbs, it would be very hard to keep my foot out of it, and I would probably get the aforementioned 5 mpgs if I was lucky
__________________
- art k. - Moderator for the Superduty, V10, and FE forums
'01 F250SD SC SB XLT V10 4x4 auto 3.73 Warn hubs Volant CAI, eBay headers and y-pipe - 5-star custom tunes on SCT X3
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased! I've been wrong before, I'll be wrong again. Just wait and see. ®
With a 427 with dual carbs, it would be very hard to keep my foot out of it, and I would probably get the aforementioned 5 mpgs if I was lucky
In my 427 R code 1967 Mercury Cyclone, my 1968 Shelby GT500 KR w/C6 and my 1966 Mercury 390 GT repowered to 427 MR with 4 spd. Of course I was driving with a light foot to get those kinds of figures and I used a vacuum guage too. When I was getting on it I didn't check the economy as I knew it was not worth remembering. I also had 1 1957 Galaxie 500 with a 427 but it rarely saw the street. I ran Low riser, Medium riser and Tunnel ports on the street and at the drags. In my opinion thae 427 was the best engine to come out of Ford Motor Company. I also owned and built several 427 SOHCs but none went into my cars, always for customers. One is in a Cobra replica called a Stallion that lives around Colombus Ohio. Jegs did the installation.
Um, just remember one thing - this is a Ford TRUCK enthusiasts web site
On the other hand, my highboy did get 15MPGs with a highly-modified 390. But I suspect it was running a bit lean...
__________________
- art k. - Moderator for the Superduty, V10, and FE forums
'01 F250SD SC SB XLT V10 4x4 auto 3.73 Warn hubs Volant CAI, eBay headers and y-pipe - 5-star custom tunes on SCT X3
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased! I've been wrong before, I'll be wrong again. Just wait and see. ®
A 427 has a shorter stroke than a 390, and may not develop as much low-end-torque, and if this is going into a heavy truck, might not be the right match. Might be better off finding a 428. Just sayin'
427 shorter stroke ?? Humm.Art you need to put down that peace pipe !!
__________________
Blue Saphire 70 F250 436"CJ in Progress/Rollerized C6/4:10 Locker
Teal and Silver 96 XLT F150 4X4 302", EAOD, 3:55 Trac-Loc, Lock out Hubs, Daily Driver
A 427 has a shorter stroke than a 390, and may not develop as much low-end-torque, and if this is going into a heavy truck, might not be the right match. Might be better off finding a 428. Just sayin'
No it doesn't. It has the same stroke as the 390, 3.785" and it always did.
My question is that there were very few 427s from the early 70s. Is it cross bolted? Have you measured the bore yet? if it isn't at least 4.23" it ain't a 427. Why on God's Green Earth would anyone replace any of the stock aluminum 427 intakes with a Port-o-sonic?
Oh and I agree, a 428 would be a better street motor.
__________________
Bear 45/70
"A dude with a pencil is worse than a cat with a machinegun"... Bo Diddley
450 to 500 hp 427--you get 15 mpg out of that and you're due the Nobel Prize for fuel economy.
Especially in a pickup.
As for 15 mpg with dual 780s, funny you could get better mpg than a 390 2bbl. Imperial gallons and kilometers perhaps....?
I think you oughta re-read Brians post...he said a 390 in his highboy ! and any Mechanic worth his salt doesnt just tune an engine to factory specs out of the book...Unless you just want the average Joe running motor..those are just a baseline to start with (put you in the ballpark) so to speak.. "Fine" tuning goes along ways...
But what would he know about FE's anyway..His truck only ran a 6 sec. 1/8th mile in 4 wheel drive !And also set a new track record in the process.."Not just for Trucks" Thats for anything that ever ran on the track.. I dont see any Pics of your 6 sec. anything ? I guess you do NOT know you can tune for max hp..Or Torque, Or max fuel economy or any combonation in between.. and a Chit load of trick stuff besides that also... I think I would do my research on a Man capabilities and the machines he's built before opening my mouth.. Granted I stuck my 2 cents in here where it probably didnt belong... I'am off my soap box now..Its too early in the morning and I need my first cup...
Brian i know you'll probably read this ...Need a update when you get time on the Hemi powered piperack car ! I got a little info from Fudd...But he says he cant even keep track of you ! LOL..Tell him I said hi..I owe him an email also..
__________________
Blue Saphire 70 F250 436"CJ in Progress/Rollerized C6/4:10 Locker
Teal and Silver 96 XLT F150 4X4 302", EAOD, 3:55 Trac-Loc, Lock out Hubs, Daily Driver
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.
