ek9beezler

It's decision time for my build and I'm hoping the gurus can help.

Goals are twofold and in this order:

1. Streetability/spool
2. 1000hp at the crank on E85

5.3 stock block
PRC Stage 2.5 706 heads
TSP 224/228R6 114 cam
Fast 102 intake/tb
4l80E with Circle D Multi Disk Billet 3200 stall

All going in a 1966 F100 which has a curb weight of about 3400 lbs.

I'm thinking it's between the Turbonetics 7575 Billet BB or the Precision Billet 7675 journal bearing. What do you guys think?

2000WS6TA

iTrader: (5)

ive heard great things about the Precision 7675. i was going to run the non billet one at one point on a 346 and was told they spool up FAST! since then i went bigger motor, bigger turbo, but id imagine the billet would spool even better.

necrocannibal

iTrader: (5)

I had a Precision billet 7675 and it did spool pretty quick. Made 705 rwhp until I started running into issues with it being to small for my motor, 383.

ek9beezler

THanks for the responses guys. Necrocannibal how much boost were you running before it started running out of breath?

necrocannibal

iTrader: (5)

It made that 705 at 18 to 19 pounds.

RedDeadG8

iTrader: (3)

so the 7675 can make 700rwhp on a 383. what size did you move up to from there?

necrocannibal

iTrader: (5)

I went to a 408 with a BW S480.

FourG63 97GST

iTrader: (1)

7675 can make more than that
even Zglass made 850 on a PT7176, with a 5.3

necrocannibal

iTrader: (5)

7675 is small for a 383 but a pretty good size for a 5.3.