502 BBF
+3
5pointslow
Mark Miller
68galaxie
7 posters
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502 BBF
68galaxie May 23rd 2023, 9:16 pm
502" BBF Carb to Pan
DOVE-A block (with the Boss 429 bulkheads)
Offset ground early crankshaft - 4.15" stroke / 2.20" journals
Crower connecting rods 6.535"
Venolia custom pistons 12.6:1 CR with 75cc chamber
Canton T style road race oil pan
Ford Motorsports A429 cylinder heads - ported at AMS (flow figures available if wanted)
Ferrea Competition Plus valves 2.19/1.76
Victor intake ported (flow with intake manifold attached if wanted)
1100 cfm Pro-Systems carb
MSD billet distributor
Comp cams solid roller camshaft FF2235R / 1962R 111LSA 278/290 @ 0.050" 0.454"/0.450" lobe lift (2015 installation)(Lem Evans Camshaft)
Spare Crane solid roller cam R-276/4334-2S-10 110 LSA 276/286 @ 0.050" 0.4334"/0.427" lobe lift
Crower HIPPO solid roller lifters - replaced non pressure fed crower lifters in 2015 - and new CC solid roller cam installed
PSI 1224 valve springs (2021 installed)
Spare Manley 221424-16 springs (all check good on pressure test)
Manley Ti retainers
T&D shaft rockers 1.75:1
Manton pushrods
Edelbrock water pump
LSM valve spring removal tool (for use with T&D rockers)
$6,500 USD
Located in Edmonton, AB
DOVE-A block (with the Boss 429 bulkheads)
Offset ground early crankshaft - 4.15" stroke / 2.20" journals
Crower connecting rods 6.535"
Venolia custom pistons 12.6:1 CR with 75cc chamber
Canton T style road race oil pan
Ford Motorsports A429 cylinder heads - ported at AMS (flow figures available if wanted)
Ferrea Competition Plus valves 2.19/1.76
Victor intake ported (flow with intake manifold attached if wanted)
1100 cfm Pro-Systems carb
MSD billet distributor
Comp cams solid roller camshaft FF2235R / 1962R 111LSA 278/290 @ 0.050" 0.454"/0.450" lobe lift (2015 installation)(Lem Evans Camshaft)
Spare Crane solid roller cam R-276/4334-2S-10 110 LSA 276/286 @ 0.050" 0.4334"/0.427" lobe lift
Crower HIPPO solid roller lifters - replaced non pressure fed crower lifters in 2015 - and new CC solid roller cam installed
PSI 1224 valve springs (2021 installed)
Spare Manley 221424-16 springs (all check good on pressure test)
Manley Ti retainers
T&D shaft rockers 1.75:1
Manton pushrods
Edelbrock water pump
LSM valve spring removal tool (for use with T&D rockers)
$6,500 USD
Located in Edmonton, AB
68galaxie- Posts : 347
Join date : 2010-04-13
Location : Edmonton AB
Lem Evans likes this post
Re: 502 BBF
Mark Miller May 23rd 2023, 11:33 pm
That's a bargain for that engine are the Pistons Flat Tops?
Mark Miller- Posts : 1778
Join date : 2009-09-01
Re: 502 BBF
68galaxie May 24th 2023, 11:03 am
The pistons are custom Venolia forgings. Small dome (~0.060" high I recall)
68galaxie- Posts : 347
Join date : 2010-04-13
Location : Edmonton AB
5pointslow- Posts : 1347
Join date : 2009-10-11
Age : 34
Location : MASSHOLE aka BOSTONIAN
Re: 502 BBF
supervel45 May 24th 2023, 1:55 pm
4.39" bore 4.15" stroke 72cc head, .041"/4.5" head gasket straight flattop no valve relief or dome, .000 deck comes to 13.45/1. Just saying. Mid 14.42/1 with 6cc Dome.
That is a very nice engine. ABlock with Boss bulkhead to boot. Great Price.
That is a very nice engine. ABlock with Boss bulkhead to boot. Great Price.
supervel45- Posts : 3810
Join date : 2013-09-04
Re: 502 BBF
supervel45 May 24th 2023, 2:10 pm
5pointslow wrote:wish you were closer
You should check the pallet shipping. If everything is in order it might be worth it?
Just the top end is worth 3-3,5 w/o rockers. The T&D shaft rockers add big coin to the package. Probably over 2 grand.
supervel45- Posts : 3810
Join date : 2013-09-04
Re: 502 BBF
68galaxie May 24th 2023, 6:09 pm
The pistons had intake and a small exhaust relief.
Plenty of clearance measured with the 0.780" cam.
Putting the original 390 engine back in - 500 hp build.
The 502 was way, way too much for a street driven car (and 5200 stall converter)
Ran on 108 octane fuel - <20 liters per year. Maybe 10 to 15 miles per year.
Plenty of clearance measured with the 0.780" cam.
Putting the original 390 engine back in - 500 hp build.
The 502 was way, way too much for a street driven car (and 5200 stall converter)
Ran on 108 octane fuel - <20 liters per year. Maybe 10 to 15 miles per year.
68galaxie- Posts : 347
Join date : 2010-04-13
Location : Edmonton AB
Re: 502 BBF
supervel45 May 24th 2023, 8:31 pm
^ I did not mean anything about valve to piston clearance.
Glad you brought up the 2 valve relief's though.
I was just pointing out that the stroker crank and 72cc heads raises the compression some over what may be listed sometimes from the manufacturer, is all.
6cc worth of valve relief's on a flat top comes out at 12.61/1 with no pop up.
If the pop up cancels out the valve relief's, to 0cc's, it will be at 13.45/1. If they don't it will be higher.
Whatever the compression is in the above ranges, if those heads are flowing good, I can see it making a lot or HP with those cams and a great, Deal in 2023 Dollars, especially with a $500 dollar roller cam thrown in.
Glad you brought up the 2 valve relief's though.
I was just pointing out that the stroker crank and 72cc heads raises the compression some over what may be listed sometimes from the manufacturer, is all.
6cc worth of valve relief's on a flat top comes out at 12.61/1 with no pop up.
If the pop up cancels out the valve relief's, to 0cc's, it will be at 13.45/1. If they don't it will be higher.
Whatever the compression is in the above ranges, if those heads are flowing good, I can see it making a lot or HP with those cams and a great, Deal in 2023 Dollars, especially with a $500 dollar roller cam thrown in.
supervel45- Posts : 3810
Join date : 2013-09-04
Re: 502 BBF
68galaxie May 25th 2023, 12:08 am
With the 75 cc chamber and 0.010" deck height the CR is around 12.68 (assuming the small dome cancelled out the valve relief cc's.
I looked up the flow testing:
Head flow (int/exh) :
.2 152/117
.3 237/160
.4 296/200
.5 325/224
.6 358/244
.7 374/257
.8 388/261
I looked up the flow testing:
Head flow (int/exh) :
.2 152/117
.3 237/160
.4 296/200
.5 325/224
.6 358/244
.7 374/257
.8 388/261
68galaxie- Posts : 347
Join date : 2010-04-13
Location : Edmonton AB
Mark Miller likes this post
Re: 502 BBF
supervel45 May 25th 2023, 12:20 am
^12.68/1 on the money with those numbers, true. That's some nice flow numbers for the CobraJets. Likely in the 800 to 840HP range I bet.
supervel45- Posts : 3810
Join date : 2013-09-04
Re: 502 BBF
J.Toney May 28th 2023, 3:08 pm
Excellent deal. I sitting here talking myself out of a road trip for an engine I don’t need.
J.Toney- Posts : 380
Join date : 2009-08-18
Location : Kent CIty, MI
Re: 502 BBF
supervel45 May 28th 2023, 10:30 pm
^ I think you need to go get it. I am seprized he still has it.
supervel45- Posts : 3810
Join date : 2013-09-04
Re: 502 BBF
jc122078 May 29th 2023, 8:22 am
How much horsepower did the Boss bulkhead get to I have a simular Bulkhead thick webs thin walls engine for my build. They are rare now. Mine has a T56 Magnum xl with the Gt500 tail shaft that's extended
jc122078- Posts : 8
Join date : 2012-06-23
Re: 502 BBF
maverick172 May 30th 2023, 8:54 am
pm sent if you still have thanks68galaxie wrote:502" BBF Carb to Pan
DOVE-A block (with the Boss 429 bulkheads)
Offset ground early crankshaft - 4.15" stroke / 2.20" journals
Crower connecting rods 6.535"
Venolia custom pistons 12.6:1 CR with 75cc chamber
Canton T style road race oil pan
Ford Motorsports A429 cylinder heads - ported at AMS (flow figures available if wanted)
Ferrea Competition Plus valves 2.19/1.76
Victor intake ported (flow with intake manifold attached if wanted)
1100 cfm Pro-Systems carb
MSD billet distributor
Comp cams solid roller camshaft FF2235R / 1962R 111LSA 278/290 @ 0.050" 0.454"/0.450" lobe lift (2015 installation)(Lem Evans Camshaft)
Spare Crane solid roller cam R-276/4334-2S-10 110 LSA 276/286 @ 0.050" 0.4334"/0.427" lobe lift
Crower HIPPO solid roller lifters - replaced non pressure fed crower lifters in 2015 - and new CC solid roller cam installed
PSI 1224 valve springs (2021 installed)
Spare Manley 221424-16 springs (all check good on pressure test)
Manley Ti retainers
T&D shaft rockers 1.75:1
Manton pushrods
Edelbrock water pump
LSM valve spring removal tool (for use with T&D rockers)
$6,500 USD
Located in Edmonton, AB
maverick172- Posts : 126
Join date : 2022-10-16
68galaxie- Posts : 347
Join date : 2010-04-13
Location : Edmonton AB
J.Toney likes this post
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