AFR 315cc head build 561cid Bracket Engine - 460 Ford Forum
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post #1 of 18 (permalink) Old 02-17-2019, 08:48 PM Thread Starter
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AFR 315cc head build 561cid Bracket Engine

Alright Guys Here is my build This is a New bracket engine that I wanted to try the New 315cc AFR Heads I have built several engines using Kaase P51`s and Power Port 325cc Trickflows. I think there are all great heads! I wanted a high velocity engine with a flat Hp and Torque curve. This is not a MAX build nor was I trying.

a460 block 4.56 bore - 4.3 stroke callies magnum crank - diamond 5.8cc domed pistons - advanced profiled rings - kaase oil pump - innovators west belt drive and harmonic balancer with crank trigger - 315 afr heads with 4500 port matched intake - comp cams solid roller I ordered from Kaase 280 / 288 @ .050 with .787 lift 112 lobe sep and installed int centerline @ 110 T&D shaft 1.75 rockers. SV1 - 1260cfm one barrel carb from prosystem and I run M1 methanol. It would probably be faster on race gas but I like Methanol. I wanted it to make 950hp and it did. Guess I got lucky. I will upload Dyno Sheet tomorrow - I left it at work 952hp @6900 810tq @ 5900 most of the pulls were 945hp @ 6700 804tq @ 5800

3060lb 79 mustang chassis car FTI PG with 6200 converter
My old combo was a 589 cid P51 with a kaase K1 cam it ran 5.80`s @ 118mph - 6000-7000 feet air density. 5.75 in witchita Kansas - I`m hoping with this new motor low 5.70`s or 60`s at 6000 - 7000 feet air density Texas Panhandle air not too good in the summer time.
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Last edited by Tim Trayler; 02-20-2019 at 12:44 PM.
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post #2 of 18 (permalink) Old 02-18-2019, 12:34 AM
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Nice build man!!........looks awesome.

How much compression?

What size headers?

Cheers, Bob
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post #3 of 18 (permalink) Old 02-18-2019, 07:51 AM Thread Starter
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It`s right at 15:1 I used a .045 head gasket for some extra safety clearance. BBC Headers I built with adapter plates 2-1/4 - 4 inch collector. Dyno in Amarillo TX 4000 feet elevation at Panhandle Performance engine.
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post #4 of 18 (permalink) Old 02-18-2019, 03:43 PM
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It`s right at 15:1 I used a .045 head gasket for some extra safety clearance. BBC Headers I built with adapter plates 2-1/4 - 4 inch collector. Dyno in Amarillo TX 4000 feet elevation at Panhandle Performance engine.
Awsome! prosystems carbs are my favorite, Pat knows his craft. well done!
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post #5 of 18 (permalink) Old 02-18-2019, 06:05 PM
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That oil pressure correct?
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post #6 of 18 (permalink) Old 02-18-2019, 08:38 PM Thread Starter
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Yes Sir That is with a vaccum pump. I have never had a a460 block or a OE block with a Kaase or Melling high volume pump keep much over 50 psi when at full run temps.
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post #7 of 18 (permalink) Old 02-19-2019, 07:23 PM
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Quote:
Originally Posted by Tim Trayler View Post
Alright Guys Here is my build This is a New bracket engine that I wanted to try the New 315cc AFR Heads I have built several engines using Kaase P51`s and Power Port 325cc Trickflows. I think there are all great heads! I wanted a high velocity engine with a flat Hp and Torque curve. This is not a MAX build nor was I trying.

a460 block 4.56 bore - 4.3 stroke callies magnum crank - diamond 5.8cc domed pistons - advanced profiled rings - kaase oil pump - innovators west belt drive and harmonic balancer with crank trigger - 315 afr heads with 4500 port matched intake - comp cams solid roller I ordered from Kaase 280 / 288 @ .050 with .787 lift 112 lobe sep and installed int centerline @ 110 T&D shaft 1.75 rockers. SV1 - 1260cfm one barrel carb from prosystem and I run M1 methanol. It would probably be faster on race gas but I like Methanol. I wanted it to make 950hp and it did. Guess I got lucky This is not a max effort I could of put a 4.5 crank with a bigger cam but I didn`t. I will upload Dyno Sheet tomorrow - I left it at work 952hp @6900 810tq @ 5900 most of the pulls were 945hp @ 6700 804tq @ 5800
Max torque under 6000 RPM, good call, all in early. That thing is going to move
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post #8 of 18 (permalink) Old 02-19-2019, 09:07 PM Thread Starter
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Max torque under 6000 RPM, good call, all in early. That thing is going to move
Thank ya sir I have several more builds to post soon I hope
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post #9 of 18 (permalink) Old 02-22-2019, 02:10 AM
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Very nice build. Did you use the "Boss 429" crankshaft snout?
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post #10 of 18 (permalink) Old 02-22-2019, 11:17 AM Thread Starter
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yes sir
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post #11 of 18 (permalink) Old 02-23-2019, 11:44 PM
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what is involved with using the Boss snout as opposed to the longer standard snout thanks
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post #12 of 18 (permalink) Old 02-25-2019, 09:42 PM Thread Starter
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The callies magnum cranks for the 460 comes with the short snout. I also believe that the lighter weight series of scat cranks also come with a short snout. ATI - Innovators west makes a balancer for the short snout and it costs the same as the standard long snout. You can also run a small block balancer. Advantages? a little less weight off the crank - you can set up your pulleys closer to the block - more strength all around especially in super charged applications.

Something that I have come across in the past with crankshafts. I ordered a lunati and a ohio cranks shaft and I guarantee that both came from the same company. The exact same weight - appearance as in color - the same chamfering - the EXACT same Machining marks on the long crank snout. Absolutely the same company machined both brands. The lunati is usually $200.00 more. I`ve seen some pics online of a eagle crank without the ESP finish and it looked really close by the picture like the lunati and ohio cranks.
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post #13 of 18 (permalink) Old 02-28-2019, 06:46 PM
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The callies magnum cranks for the 460 comes with the short snout. I also believe that the lighter weight series of scat cranks also come with a short snout. ATI - Innovators west makes a balancer for the short snout and it costs the same as the standard long snout. You can also run a small block balancer. Advantages? a little less weight off the crank - you can set up your pulleys closer to the block - more strength all around especially in super charged applications.

Something that I have come across in the past with crankshafts. I ordered a lunati and a ohio cranks shaft and I guarantee that both came from the same company. The exact same weight - appearance as in color - the same chamfering - the EXACT same Machining marks on the long crank snout. Absolutely the same company machined both brands. The lunati is usually $200.00 more. I`ve seen some pics online of a eagle crank without the ESP finish and it looked really close by the picture like the lunati and ohio cranks.
I went with an ohio crank on a prevous build and the machinist reported the crankshaft to be as accurate he has ever seen, and has been doing it for 35 years. I have not actually dealt with lunati until now, however it seem to be fine as well. is it possible they are forged at the same place and finished at different locations with different people running similar machines? We've all heard the debate before. But I can testify Ohio sent out a flawless product, in my opinion. My machinist was impressed. I think most everyone expects the lunati to be right on.I thought H beam rods are all pretty much manufactured at the same place and finished at different locations

Last edited by Shawn01754; 02-28-2019 at 06:52 PM.
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post #14 of 18 (permalink) Old 02-28-2019, 09:04 PM Thread Starter
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Yeap I haven`t had a problem with any of them. I really like the Ohio Severe Duty Ibeam rods. This 561 and my 589 both have the Ibeam rods. My 589 has a 4.5 ohio crank. My 68 f100 have the lunati crank in it. What`s funny is that the ohio severe duty Ibeam`s are lighter than eagle - scat - engine pro H-beam`s - plus they come with 2000 arp bolts and are rated higher hp rating.
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post #15 of 18 (permalink) Old 02-28-2019, 09:46 PM
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Kaase used a lunati crank in his 598 sr71 testing.....................so must be a stout piece!!

Tim what's the other build's you were going to post up?

Cheers Bob
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