Thread: Engine Build

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I was wondering if anyone could run this through a Desk Top Dyno and let me know roughly what kind of power it will make and if I should change anything. Here is the engine:

454 block

AFR 335cc Fully CNC Ported Magnum BBC Head
121cc Compustion Chamber
Valves 2.3in 1.88exh
Intake
.200 - 164
.300 - 240
.400 - 304
.500 - 352
.600 - 385
.700 - 404
.800 - 410
Exhaust
.200 - 144
.300 - 197
.400 - 257
.500 - 285
.600 - 311
.700 - 319
.800 - 325

Voodoo Mechanical Roller Camshaft
Lift: .680''/.680''
Adv. Duration: 285°/293°
Duration @ .050'': 255°/263°
RPM Range: 3000-7200

Edelbrock RPM Air-Gap intake (dual plane)or Victor Jr. (single plane)

Proform 850cfm

10:1 compression (forged rotating assembly)

2 1/8" headers

roller lifters

1.8 roller rockers

if i am leaving anything out just ask and i will let you know. I have never built a big block before and need all the help I can get.

why so low on the cr why do you want to run 1.8 rockers?if you want more lift use a bigger cam the 1.7 are fine. i would run the G intake or the super victor .you could make more hp with some more cr them heads are big for a stock bore 454 will this be the size 454?

i was running lower cr so i can use a supercharger (procharger to be exact) and the 1.8 rockers were just thrown out there. I have never built a big block as i said so is that cam ok with 1.7 rockers or should i step i up?

well i can run it on the desktop but can not help with the numers with the blower i would have to run it thru with a carb .on 1.8 i would not use them less your at 800 lift and you want more

im not going to get the blower for alittel while so NA power numbers will be fine. I know higher cr will give me more power now, but i want it somewhat reliable after the blower

well i will run it . do you have open and close numbers on the cam@.050 and lsa and the lash like 022 or 025 can get me close if you do not have it

here is the cam card

http://www.holley.com/data/Products/...l/502A5LUN.pdf

ok i will run it now. hang on if you want

here is your cam rpm 6500 HP651 TQ 599 5000 rpms and your cam at 11to1 rpm 6500 Hp678 rpm .617 5000 TQ . some cam i had cr 10to1 6500 HP 677 5000TQ 559 AND AT 11TO1 HP700@7500 AND TQ571@6000

is there anything that you would change on the engine??? is that good HP and TQ for those heads? Is there a better cam I can use?

i think the cam is ok but for the blower more dur on the ex side like 272 . but not to much more lift on the intake side you will be pushing it in with the blower and may be some thing with more lobe center and the 4-7 swap i would call them and see what they say. i have one more cam that i can run .some thing i have. but it would not be to night .tomorrow i do not like them 121 cc head for the small bore .you will have to run some dome on the piston for 10to1. it would be good to run a flat top with the blower

alright, thanx. If it makes a difference, I am building it for drag racing that will see very little street use, maybe 1 day a month, maybe. I don't need any specific power or 1/4 mile time. I am just in it to go to the test 'n tune and stomp on some friends (who drive hondas, yuck) and a '69 Camaro with a 468. I would like to go 9's and I don't really have a budget...yet. If anyone has a build other than what I have said I would be very interested in hearing about it. Just looking to go fast and be loud.

Originally Posted by TUBJUB

alright, thanx. If it makes a difference, I am building it for drag racing that will see very little street use, maybe 1 day a month, maybe. I don't need any specific power or 1/4 mile time. I am just in it to go to the test 'n tune and stomp on some friends (who drive hondas, yuck) and a '69 Camaro with a 468. I would like to go 9's and I don't really have a budget...yet. If anyone has a build other than what I have said I would be very interested in hearing about it. Just looking to go fast and be loud.

well i have one that in a customer car 460 in a camaro at runs 10.30 with less heads and more CR and will go faster his stall was bad