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Old 10-12-2012, 10:13 PM
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Ford 460 holley 750 Questions :)

I'll just make 1 thread and keep updating it with questions rather then posting a new one each time i need help.

I have just brought myself a 1970 jaguar with a ford 460 bigblock running a holley 750 carb, it runs but runs rough here are the list of my questions.

Whats the best sparkplug to get because i need new ones?
is this carby algood for the engine?
How do i tune the carby to run on the engine fine?
what compression is this engine ment to be at? ( in psi )
How do i set the timing? and what timing should i set it at?
What petrol is best for the engine? we have 91 octane 95 and 98
What oil should i use in it?
and i have no idea what type of ignition setup it is . . will take a picture of it

Is there anything i need to know about this motor like what to do and what not to do to it.

there is also heaps of random hoses that have jst been blocked up with bolts etc and not used will get detailed pictures of the engine etc when its fine so you can see.


any help is much appreciated Want to get this on the road


The guys to do list he gave me has these left to do.
new plugs, tune up, drive shaft, gearbox linkage,oil change, trans flush, accelerator cable, brake booster.

here is a picture of it





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Old 10-13-2012, 10:28 AM
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What year 460?

Post head and block casting numbers if you aren't sure.
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Old 10-13-2012, 06:10 PM
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Quote:
Originally Posted by TommyK View Post
What year 460?

Post head and block casting numbers if you aren't sure.
these are the numbers i have found, on the block was 1j14z on the heads was d2ve-aa. other numbers i found were, DIF, 3 dove 9425 b f4 which was on the intake

are any of them right? or where abouts can i find the ones im looking for?
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Old 10-13-2012, 07:58 PM
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there are so many random hoses which are blocked or not attached and have no idea where or what they do and also i jst realised there is no waterpump belt. . . . have to buy one tomorrow lucky iv only had it running for short periods so fingers crossed it never over heated.

think it needs new points also but i might just buy a whole new distributor setup? if so which is the best to get?

also are these spark plugs what i need? ford 460 spark plugs F SERIES (8) | Trade Me
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Old 10-13-2012, 08:38 PM
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also is this a good distributor to buy? and does this have points? no idea what HEI is . . . HEI Distributor To Suit Ford BB V8 Engines | Trade Me


here are some pictures of my engine with hoses and things im not sure where to go are, i have marked in red the numbers are for the same thing but couldnt see both ends on the picture also i have no idea what or where to put that alternator wire thing like wheres the voltage regulator or does it just go straight to the battery or where coz atm its not charging the battery













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Old 10-13-2012, 09:15 PM
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also just looking at my engine is there ment to be a tenisoner to tighten the belts? it currently only has 1 belt which is for the alternator but i need one for the waterpump but how do i put it on and keep it tight? . . . anyone know a link how to do it
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Old 10-13-2012, 09:51 PM
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No answers for ya, just wanted to say thats sweet! You may get a kick out of this
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Old 10-13-2012, 11:56 PM
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grrrrr so after having a look at what else needs doing i noticed when u blow down exhaust number 2 it goes straight out exhaust number 7 and vice versa, all other exhausts aint like this. . . . i started panicing but a mate of mine said this is normal? its made to heat up the intake manifold for better ignition or something? is this right or is it broked?
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Old 10-14-2012, 12:06 AM
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Originally Posted by xxllmm4 View Post
No answers for ya, just wanted to say thats sweet! You may get a kick out of this Release The Draguar! Building a Blown Jaguar Rat Rod - Roadkill Episode 7 - YouTube
thats awesome
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Old 10-14-2012, 02:33 AM
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Have been looking around and from what iv read my 460 is the bad one with the worst heads ..... is the block the same as all 460s? like can i just bolt on new heads and intake and itl be back to good again? and how bad are these heads? does that mean its going to wreck my engine because of detonation . . . also how can i stop that? i mean i have open exhausts and a holley 750 carb and i run it on 91 octane and going to get a HEI dizzy because its currently missing/running rough/running on like 7 cylinders when i give it a rev. . .or its the sound of detonation? i duno what that sounds like lol jst doesnt run right when i give it heaps of revs like its running on 7 cylinders. i just dont want to blow the engine i want it driveable reliable and road legal without blowing before i start modding the engine and changing the heads but if these heads are that bad ill change them i just dont want to ruin the whole engine . . .

Last edited by lil-vulky; 10-14-2012 at 02:48 AM.
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Old 10-14-2012, 12:37 PM
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Yes the 72 D2VE heads are a one year only open chamber head which is detonation prone. I would strongly suggest finding a pair of early small chamber castings C8, C9, D0 or D1 closed chamber heads. Assuming you have a stock 72 bottom end this will raise your static compression ratio to approximately 9:1. D3 heads will work as well but they are large chamber and your compression will be 8:1 or less which is not good if you have performance upgrades in mind.

Please don't take offense but it seems you are short on experience and long on issues with this engine. Do you have someone with some mechanical experience you could call on to help you sort things out and diagnose the miss?

Last edited by TommyK; 10-14-2012 at 12:38 PM. Reason: typo
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Old 10-14-2012, 02:56 PM
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once i buy a distributor and new plugs if it still runs rough ill take it in to get the carby tuned and timing done then they will be able to sort it out, kinda hard to tell why its running rough or if its missing because its so dam loud with the exhaust lol. was looking around and cant really find any other heads for sale for cheap . . . i found these "ford 460 edelbrock alloy heads 95 cc chambers 292cc intake ports 2.190 intake valves 1.760 exhaust valves1.540 springs .700 lift maxtt" these are the only heads i can find for sale, these cost like $1500 but i have no idea if these heads are good or if all 460s have the same block setup or if ill need to do work to that for it to run good,

how can i reduce chances of detonation with my current setup? just want it running before i start making more engine upgrades really, still need to hook up gearbox linkage get a drive shaft and few other things and havnt got much money at the moment so need to prioritise what to get so i can get it moving and cost effiecent.
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Old 10-14-2012, 04:27 PM
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Any head from a 429 or 460 which originally came with a carburetor will interchange on any 429 or 460 block.

To avoid detonation use the highest octane pump gas available and don't get too aggressive with the ignition timing. With those headers you will have a hard time hearing detonation if it is occurring.
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Old 10-14-2012, 06:11 PM
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what should i set the ignition timing at? and ok thanks i can run it on 98 octane just untill i get it going and moving then ill save up and find some heads
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Old 10-14-2012, 07:20 PM
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Quote:
Originally Posted by TommyK View Post
Yes the 72 D2VE heads are a one year only open chamber head which is detonation prone. I would strongly suggest finding a pair of early small chamber castings C8, C9, D0 or D1 closed chamber heads. Assuming you have a stock 72 bottom end this will raise your static compression ratio to approximately 9:1. D3 heads will work as well but they are large chamber and your compression will be 8:1 or less
Let's put some real numbers together. Lets assume a stock bore and stroke of 4.360" x 3.850". Further, lets assume that heads 1968 through 1971 were approximately 75 cc's and that heads 1972 and later were approximately 95 cc's. The 1972 D2VE heads were junk, so we'll throw them out. 1973 and later D3VE heads were OK.
Let's figure some static compression ratios just for grins....

Using early heads (75cc)
Cylinder volume (.7854) x 4.36 x 4.36 x 3.85 x 16.387 = 942 cc's
Chamber volume 75 cc's
Piston deck height volume (figured at 0.060" because of increased block deck height of 1972 and later blocks....(.7854) x 4.36 x 4.36 x .06 x 16.387 =15 cc's
Piston crown valve reliefs....estimate at 10 cc's
Head gasket....estimate at 10 cc's
942 + 75 + 15 + 10 +10 = 1,052 cc's
75 + 15 + 10 +10 = 110 cc's
Divide the larger by the smaller and find 9.56:1 SCR

Using later heads (95cc)
942 + 95 + 15 +10 +10 = 1,072 cc's
95 + 15 + 10 +10 = 130 cc's
Divide the larger by the smaller and find 8.25:1 SCR

So there is about 1 1/4 points of SCR between the early and the late heads on a stock bore and stroke 460.

If I were going to run the motor without tearing it down for a rebuild and correcting the horrible piston deck height and squish, I would use the later heads and a very short cam or the stock cam. That would allow the motor to operate well on junk pump gas without detonation. I'd be afraid of running 9.56:1, particularly with a short or stock cam. Of course, you could use a longer cam that would bleed off some of the cylinder pressure and make the motor less prone to detonation with with 9.56:1 SCR, but what I'm understanding here is that the OP has little or no expertise in that area.

So, bottom line, leave the cam alone and run the 95cc heads would be my advice.
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