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Old 06-03-2005, 11:05 PM
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BBC 454 in 88 mustang coupe

heres some info on the motor:
454 hi-pro Chevrolet motor, Block # 3955270

454 60 over, 396 10-10 steel crank. 13to1 speed pro, close chamber pistons

Chevy race rods, ARP bolts, Melling solid lift cam. 9 quart oil pan

Double roller timing chain. block decked, line bored and balanced.

Hi flow oil pump, hi-rev push rods open chamber heads, ported and polished.

Tranny and rearend:
TH400 built by Monster Motorsports
TCI 3500 stall 10"
8.8" rear with 4.56 gears.
weld draglites. 3.5" skinnies and 9" rears with 26 11.50 ET Streets.

The car will be drivin only on the weeknds and mostly the track.

My questions are what size carb should I run? Was thinkin a holley 1050 or 1150.
Should I go with a taller tire? 28"?
Will i run out of gear in the quarter mile with 4.56's? Thinkin about 4.10's

Any comments will be helpful. Thanks in advance,
Tony

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Old 06-04-2005, 10:22 AM
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Quote:
454 60 over, 396 10-10 steel crank
Uh this makes 427 cui not 454... (3.76 stroke crank...)


Most likely the 4.11 gear would be better... Also what heads...? (casting number)
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Old 06-04-2005, 10:33 AM
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Not too familiar with Mustangs, will the engine physically fit without major mods?
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Old 06-04-2005, 11:00 AM
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460s fit in there, no reason why a 454 wouldn't.

Sounds like the makings of a machine with a very high yee-haa factor.

As for the questions, there's a few little details we need.

Heads, cam, and compression? The rpm range as well as engine size determines the need for carb cfm. Based on the bottom end you have I'd say an 850 would do just fine, for most engines that size.

You won't run out of gear in any situation, you can run out of useable rpm but never gear.


Larry

Last edited by coldknock; 06-04-2005 at 11:16 AM.
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Old 06-04-2005, 11:13 AM
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Quote:
Originally Posted by Bumpstick
Uh this makes 427 cui not 454... (3.76 stroke crank...)


Most likely the 4.11 gear would be better... Also what heads...? (casting number)
Yes, I know that when destroked it is not a 454 anymore, but I dont think its a 427 either. I think its somewhere around a 433 or something.
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Old 06-04-2005, 11:17 AM
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Quote:
Originally Posted by Lonestar
Not too familiar with Mustangs, will the engine physically fit without major mods?
Well I origanally was going to do a sbc 406, so I purchased a custom made tubular K-member and cross member for the swap, but now I decided to do a big block. I will have to use a motor plate and then cut the motor mount plates off the k-member so the headers will clear easier.
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Old 06-04-2005, 11:22 AM
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Quote:
Originally Posted by coldknock
460s fit in there, no reason why a 454 wouldn't.

Sounds like the makings of a machine with a very high yee-haa factor.

As for the questions, there's a few little details we need.

Heads, cam, and compression? The rpm range as well as engine size determines the need for carb cfm. Based on the bottom end you have I'd say an 850 would do just fine, for most engines that size.

You won't run out of gear in any situation, you can run out of useable rpm but never gear.


Larry
I will post the cams and head specs in a few. The motor is making 13:1 comp. I was thinking at least a holley 1050. The motor will probably see a 300 shot after awile.
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Old 06-04-2005, 12:45 PM
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If its std. bore then it makes 427 cui but a .030 over bore will make a 433 cui (the 427 is a 454 bore with the stroke of a 396/402/427 which is 3.76)


Also noted the closed chamber pistons and with open chamber heads you cannot make 13 to 1 compression its just physically impossible... I am running the ZL-1/L-88 closed chamber piston that is 12 to 1 with a closed chamber but with an open chamber head it makes 10.8 to 1 (basicly 11 to 1 with the headgasket I am using)

There are 13 to 1 open chamber designs but not sure Speedpro makes them also do you have them already...? Please give the part number to the pistons and the compression ratio can be determined with your heads...
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Old 06-04-2005, 01:03 PM
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Quote:
Originally Posted by Bumpstick
If its std. bore then it makes 427 cui but a .030 over bore will make a 433 cui (the 427 is a 454 bore with the stroke of a 396/402/427 which is 3.76)


Also noted the closed chamber pistons and with open chamber heads you cannot make 13 to 1 compression its just physically impossible... I am running the ZL-1/L-88 closed chamber piston that is 12 to 1 with a closed chamber but with an open chamber head it makes 10.8 to 1 (basicly 11 to 1 with the headgasket I am using)

There are 13 to 1 open chamber designs but not sure Speedpro makes them also do you have them already...? Please give the part number to the pistons and the compression ratio can be determined with your heads...
So then what cubic inch would it be if its .60 over? I will get all the part numbers and specs later seeing that the motor is not at my house.
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Old 06-04-2005, 03:01 PM
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@ .060 its a 439 cui...
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Old 06-04-2005, 03:31 PM
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Speed Pro L2308AF has a 0.585" dome that would come close to 13-1 with milled heads, decked block and careful machining to keep them clear of the valves.

Too much trouble for 1 more point of compression.

Larry
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Old 06-04-2005, 07:43 PM
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454 BBC in a Mustang?

Only question I have is why would anyone want to ruin a good Mustang. Go find a Camaro, and play with it.
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Old 06-04-2005, 10:53 PM
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Quote:
Originally Posted by Max Keith
Only question I have is why would anyone want to ruin a good Mustang. Go find a Camaro, and play with it.
What do you mean ruin? Im improving the mustang!
Plus I like to be different. I dont want the same thing everyone else has.
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Old 06-04-2005, 11:37 PM
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Another Clne mobile

Seems everyone has dropped a bow tie in about any kind of vehicle running. Try something origional.
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Old 06-05-2005, 07:45 AM
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Quote:
Originally Posted by Max Keith
Seems everyone has dropped a bow tie in about any kind of vehicle running. Try something origional.
If you read my last line I said I dont want be like everyone else. So why would tell me to be original.
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