SKU: 299900313

1759VBP GEN I SBC with Vortec Bypass Port

$170.10 $189.00
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Description

1759VBP GEN I SBC with Vortec Bypass PortMore Power. More Heat! Flowkooler pump 1759VBP is designed for Gen I SBCs with Vortec heads. Unlike internal bypass passages found in older blocks the Vortec blocks and heads do not have the internal bypass passages so the the coolant bypass is an external hose connection from the water pump to the intake manifold. You run a bypass hose from a bung on the top rear of the water pump to a matching threaded port on the intake manifold to ensure

More Power. More Heat!

Flowkooler pump 1759VBP is designed for Gen I SBCs with Vortec heads.  Unlike internal bypass passages found in older blocks the Vortec blocks and heads do not have the internal bypass passages so the the coolant bypass is an external hose connection from the water pump to the intake manifold. You run a bypass hose from a bung on the top rear of the water pump to a matching threaded port on the intake manifold to ensure continuous coolant circulation while the engine is cold.

What do you do if the bypass bung in your present pump is not there? Well we have you covered. We drill and thread a 3/8" threaded bypass hole to feed the coolant to the rear of the Vortec heads.  The increased flow will help improve circulation to overcome the increased resisistance inherent in added lines. 

The pump has a 16 blade skip vane impeller that is CNC machined from billet aluminum.  An increased vane count and a reduction in the plate-impeller clearance achieves greater flow rates, higher head pressure and a more efficient flow than other OEM water pumps.  It is then surface coated with a military grade type II Class II anodized finish. 

FlowKooler introduced the first hi flow pumps for the ZZ4 and continues to improve impeller design. Why is increased flow so important to cooling a hot small block engine? Because it has been proven time and time again that reducing the cycle time between the heat source and the heat sink creates more opportunities to shed heat and drop engine temperatures.

Read about resolving the Vortec engine temperature spike 

From 0-3,300 RPM…Nothing Beats a FlowKooler!

General Specifications:
Type of Material of Pump Body Cast Iron
Number of Blades on Impeller 16 CNC Aluminum
Direction of Rotation CW or CCW
Fan Hub Working Height 6-7/8" (long)
Shaft Diameter 5/8"
Pulley Bolt Pattern 1 1/2" adjacent  & 2 1/8" across
Power Steering boss Yes - 3/8" through hole driver side
Alternator Boss Yes - 3-3/8" threaded mounts
Hose Connections 1st 2nd
Gender F F - for vortec heads
Diameter 5/8" 3/8" NPT
Threaded Yes Yes
Other Special Features:
  • 16 blade CNC Machined Aluminum impeller that is protected with military grade anodized surface coating
  • Fits General Motors products with TBI
  • This pump has an un-threaded PS boss. 1987-1995 SBC should purchase 1774 without the power steering boss
  • Images show a brass reducer to illustrate the location.  This is not included.
  • Pay attention! We cannot warranty a cracked casting if you overtighten the port.
  • Alternative Part Numbers 10049026, 12307863, 12522016, 31228, 364790, 372334, 384780, 3853692, 3859632, 3957932, 3998198, 474028, 6272157
Parts Contained in Box:
Mounting Gasket, Installation Sheet, FlowKooler Decal
Make Model Year Block CID Liters
CHECKER DELUXE 76-69 V8 307 5.0L
CHECKER DELUXE 76-69 V8 350 5.7L
CHECKER MARATHON 70-69 V8 307 5.0L
CHECKER MARATHON 76-69 V8 350 5.7L
CHEVROLET BEL AIR 1969 V8 327 5.3L
CHEVROLET BEL AIR 1969 V8 327 5.4L
CHEVROLET BEL AIR 75-69 V8 350 5.7L
CHEVROLET BEL AIR 75-70 V8 400 6.6L
CHEVROLET BISCAYNE 1969 V8 327 5.3L
CHEVROLET BISCAYNE 1969 V8 327 5.4L
CHEVROLET BISCAYNE 72-69 V8 350 5.7L
CHEVROLET BISCAYNE 72-70 V8 400 6.6L
CHEVROLET BLAZER 73-72 V8 307 5.0L
CHEVROLET BLAZER 76-72 V8 350 5.7L
CHEVROLET BLAZER 76-75 V8 400 6.6L
CHEVROLET BROOKWOOD 1969 V8 327 5.3L
CHEVROLET BROOKWOOD 71-69 V8 307 5.0L
CHEVROLET BROOKWOOD 72-69 V8 350 5.7L
CHEVROLET BROOKWOOD 72-70 V8 400 6.6L
CHEVROLET C10/C1500 PICKUP 1973 V8 307 5.0L
CHEVROLET C10/C1500 PICKUP 1976 V8 402 6.6L
CHEVROLET C10/C1500 PICKUP 76-74 V8 350 5.7L
CHEVROLET C1500 SUBURBAN 1973 V8 307 5.0L
CHEVROLET C1500 SUBURBAN 1976 V8 307 5.0L
CHEVROLET C1500 SUBURBAN 76-73 V8 350 5.7L
CHEVROLET C20/C2500 PICKUP 1973 V8 307 5.0L
CHEVROLET C20/C2500 PICKUP 1976 V8 402 6.6L
CHEVROLET C20/C2500 PICKUP 76-73 V8 350 5.7L
CHEVROLET C2500 SUBURBAN 1973 V8 307 5.0L
CHEVROLET C2500 SUBURBAN 1976 V8 307 5.0L
CHEVROLET C2500 SUBURBAN 76-73 V8 350 5.7L
CHEVROLET C30 PICKUP 1973 V8 307 5.0L
CHEVROLET C30 PICKUP 1976 V8 402 6.6L
CHEVROLET C30 PICKUP 76-73 V8 350 5.7L
CHEVROLET CAMARO 1969 V8 327 5.3L
CHEVROLET CAMARO 1969 V8 327 5.4L
CHEVROLET CAMARO 1970 V8 396 6.5L
CHEVROLET CAMARO 1976 V8 305 5.0L
CHEVROLET CAMARO 69-68 V8 302 4.9L
CHEVROLET CAMARO 72-69 V8 400 6.6L 2 carb small block
CHEVROLET CAMARO 73-69 V8 307 5.0L
CHEVROLET CAMARO 76-69 V8 350 5.7L
CHEVROLET CAPRICE 1969 V8 327 5.3L
CHEVROLET CAPRICE 1969 V8 327 5.4L
CHEVROLET CAPRICE 71-69 V8 307 5.0L
CHEVROLET CAPRICE 76-69 V8 350 5.7L
CHEVROLET CAPRICE 76-70 V8 400 6.6L2 carb small block
CHEVROLET CAPRICE 90-86 V8 307 5.0L
CHEVROLET CHEVELLE 1976 V8 305 5.0L
CHEVROLET CHEVELLE 73-69 V8 307 5.0L
CHEVROLET CHEVELLE 76-69 V8 350 5.7L
CHEVROLET CHEVELLE 76-70 V8 400 6.6L 2 carb small block
CHEVROLET CHEVY II 1969 V8 307 5.0L
CHEVROLET CHEVY II 1969 V8 350 5.7L
CHEVROLET EL CAMINO 1976 V8 305 5.0L
CHEVROLET EL CAMINO 73-69 V8 307 5.0L
CHEVROLET EL CAMINO 76-69 V8 350 5.7L
CHEVROLET EL CAMINO 76-72 V8 400 6.6L
CHEVROLET G10/ G1500 VAN 1972 V8 307 5.0L
CHEVROLET G10/ G1500 VAN 1976 V8 400 6.6L
CHEVROLET G10/ G1500 VAN 78-72 V8 350 5.7L
CHEVROLET G20/ G2500 VAN 1972 V8 350 5.7L
CHEVROLET G20/ G2500 VAN 72-71 V8 307 5.0L
CHEVROLET G20/ G2500 VAN 76-75 V8 350 5.7L
CHEVROLET G20/ G2500 VAN 76-75 V8 400 6.6L
CHEVROLET G30/ G3500 VAN 76-72 V8 350 5.7L
CHEVROLET G30/ G3500 VAN 76-75 V8 400 6.6L
CHEVROLET IMPALA 1969 V8 327 5.3L
CHEVROLET IMPALA 1969 V8 327 5.4L
CHEVROLET IMPALA 71-69 V8 307 5.0L
CHEVROLET IMPALA 76-69 V8 350 5.7L
CHEVROLET IMPALA 76-70 V8 400 6.6L
CHEVROLET K10/1500 PICKUP 74-73 V8 307 5.0L
CHEVROLET K10/1500 PICKUP 76-73 V8 350 5.7L
CHEVROLET K10/1500 PICKUP 76-75 V8 400 6.6L
CHEVROLET K10/K1500 SUBURBAN 1973 V8 307 5.0L
CHEVROLET K10/K1500 SUBURBAN 76-73 V8 350 5.7L
CHEVROLET K10/K1500 SUBURBAN 76-75 V8 400 6.6L
CHEVROLET K20/K2500 PICKUP 76-73 V8 350 5.7L
CHEVROLET K20/K2500 PICKUP 76-75 V8 400 6.6L
CHEVROLET K20/K2500 SUBURBAN 1973 V8 307 5.0L
CHEVROLET K20/K2500 SUBURBAN 76-73 V8 350 5.7L
CHEVROLET K20/K2500 SUBURBAN 76-75 V8 400 6.6L
CHEVROLET K30/K3500 PICKUP 1973 V8 305 5.0L
CHEVROLET K30/K3500 PICKUP 76-73 V8 350 5.7L
CHEVROLET K5 BLAZER 76-75 V8 350 5.7L
CHEVROLET K5 BLAZER 76-75 V8 400 6.6L
CHEVROLET KINGSWOOD 1969 V8 327 5.3L
CHEVROLET KINGSWOOD 1969 V8 396 6.5L
CHEVROLET KINGSWOOD 70-69 L6 250 4.1L
CHEVROLET KINGSWOOD 71-69 V8 307 5.0L
CHEVROLET KINGSWOOD 72-69 V8 350 5.7L
CHEVROLET KINGSWOOD 72-70 V8 400 6.6L
CHEVROLET LAGUNA 76-73 V8 305 5.0L
CHEVROLET LAGUNA 76-73 V8 350 5.7L
CHEVROLET LAGUNA 76-73 V8 400 6.6L
CHEVROLET MALIBU 1973 V8 307 5.0L
CHEVROLET MALIBU 1976 V8 307 5.0L
CHEVROLET MALIBU 76-69 V8 350 5.7L
CHEVROLET MALIBU 76-73 V8 350 5.7L
CHEVROLET MALIBU 76-73 V8 400 6.6L
CHEVROLET MONTE CARLO 1976 V8 305 5.0L
CHEVROLET MONTE CARLO 76-70 V8 350 5.7L
CHEVROLET MONTE CARLO 76-70 V8 400 6.6L
CHEVROLET NOVA 1975 V8 262 4.3L
CHEVROLET NOVA 1976 V8 305 5.0L
CHEVROLET NOVA 73-69 V8 307 5.0L
CHEVROLET NOVA 76-69 V8 350 5.7L
CHEVROLET P10 VAN 1973 V8 307 5.0L
CHEVROLET P10 VAN 75-73 V8 350 5.7L
CHEVROLET P20 VAN 1973 V8 307 5.0L
CHEVROLET P20 VAN 74-72 V8 350 5.7L
CHEVROLET P20 VAN 76-75 V8 350 5.7L
CHEVROLET P30 VAN 1976 V8 400 6.6L
CHEVROLET P30 VAN 70-69 L3 159 2.6L
CHEVROLET P30 VAN 73-72 V8 307 5.0L
CHEVROLET P30 VAN 76-72 V8 350 5.7L 1972 w/ 4 BBL carb
CHEVROLET TOWNSMAN 1969 L6 250 4.1L
CHEVROLET TOWNSMAN 1969 V8 327 5.3L
CHEVROLET TOWNSMAN 71-69 V8 307 5.0L
CHEVROLET TOWNSMAN 72-69 V8 350 5.7L
GMC C15/C1500 PICKUP 1973 V8 307 5.0L
GMC C15/C1500 PICKUP 1976 V8 307 5.0L
GMC C15/C1500 PICKUP 76-73 V8 350 5.7L
GMC C15/C1500 SUBURBAN 1973 V8 307 5.0L
GMC C15/C1500 SUBURBAN 1976 V8 305 5.0L
GMC C15/C1500 SUBURBAN 76-73 V8 350 5.7L
GMC C25/C2500 PICKUP 1973 V8 307 5.0L
GMC C25/C2500 PICKUP 76-73 V8 350 5.7L
GMC C25/C2500 SUBURBAN 1973 V8 307 5.0L
GMC C25/C2500 SUBURBAN 76-74 V8 350 5.7L
GMC C35/C3500 PICKUP 1973 V8 307 5.0L
GMC C35/C3500 PICKUP 76-73 V8 350 5.7L
GMC G15/G1500 VAN 73-72 V8 307 5.0L
GMC G15/G1500 VAN 76-72 V8 350 5.7L
GMC G25/G2500 VAN 73-72 V8 307 5.0L
GMC G25/G2500 VAN 76-72 V8 350 5.7L
GMC G25/G2500 VAN 76-75 V8 400 6.6L
GMC G35/G3500 VAN 73-72 V8 307 5.0L
GMC G35/G3500 VAN 76-72 V8 350 5.7L
GMC G35/G3500 VAN 76-75 V8 400 6.6L
GMC JIMMY 1972 V8 307 5.0L
GMC JIMMY 1976 V8 305 5.0L
GMC JIMMY 76-73 V8 350 5.7L
GMC JIMMY 76-75 V8 400 6.6L
GMC K15/K1500 PICKUP 1973 V8 307 5.0L
GMC K15/K1500 PICKUP 76-73 V8 350 5.7L
GMC K15/K1500 PICKUP 76-75 V8 400 6.6L
GMC K15/K1500 SUBURBAN 1973 V8 307 5.0L
GMC K15/K1500 SUBURBAN 76-73 V8 350 5.7L
GMC K15/K1500 SUBURBAN 76-75 V8 400 6.6L
GMC K25/K2500 PICKUP 1973 V8 307 5.0L
GMC K25/K2500 PICKUP 76-73 V8 350 5.7L
GMC K25/K2500 PICKUP 76-75 V8 400 6.6L
GMC K25/K2500 SUBURBAN 74-73 V8 350 5.7L
GMC K25/K2500 SUBURBAN 76-75 V8 350 5.7L
GMC K25/K2500 SUBURBAN 76-75 V8 400 6.6L
GMC K35/K3500 PICKUP 74-73 V8 350 5.7L
GMC P15/P1500 VAN 1973 V8 350 5.7L
GMC P25/P2500 VAN 1973 V8 307 5.0L
GMC P25/P2500 VAN 76-73 V8 350 5.7L
GMC P25/P2500 VAN 76-75 V8 350 5.7L
GMC P35/P3500 VAN 1973 V8 307 5.0L
GMC P35/P3500 VAN 76-73 V8 350 5.7L
GMC SPRINT 1976 V8 305 5.0L
GMC SPRINT 73-71 V8 307 5.0L
GMC SPRINT 76-71 V8 350 5.7L
GMC SPRINT 76-74 V8 400 6.6L
PONTIAC ACADIAN 1971 V8 307 5.0L
PONTIAC VENTURA 73-71 V8 307 5.0L
STUDEBAKER AVANTI II 76-73 V8 400 6.6L
Shipping Notes
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SKU: 299900313

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4.7 ★★★★★
Based on 22 reviews
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J
Verified Purchase
Jennifer G
Pawtucket, US
★★★★★ 3
Madison Deserved Better
Format: Kindle
Madison was a beta...except she wasn't any longer. She was a late presenting Omega. And she was struggling. She was tall and thin, not tiny and curvy. She was opinionated. She was everything an Omega was not. After suffering through her first heat, her friends took her to Ardor, a club where Omegas came to safely find Alphas. She's not expecting much but then she connects with a sexy beta. And when she meets his Alphas, they set her body on fire. Maybe, she's found her no-strings-attached heat pack. Maybe, she's found something more. I could not connect with the characters in this book, so their story never resonated with me. And there was no love story; there was sex. Grey made it clear from the beginning that he had a true love and it was his beta boy, Rian. He went so far as to reassure Rian “Say the word, I’ll never touch her again. Lucas can put the babies in her. I only need you, beta boy”. So, Madison was there for babies, no emotions needed. Nice. No, thank you. I want the Omega to be the center of their world, not an incubator. Lucas and Rian weren't any better. After her heat, they let her leave. Not one of them made her feel valued. No one gave her a reason to stay or even offered a cuddle. And the sex didn't even come across as mind-blowing. Madison deserved better.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 11, 2025
O
Verified Purchase
Oregon BookWorm
Charlottesville, US
★★★★★ 5
No breakup, very sweet, instalove
Format: Kindle
Omegaverse and doesn't disappoint! Sweet guys, newly Omega FMC. The boyfriends are boyfriends. What's not to love? No angst, no breakup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2025
F
Verified Purchase
ForTheLOVEofBooks
Dallas, US
★★★★★ 4
Pretty Darn Good
Format: Kindle
So I’ve been on a omega kick and this definitely hit the spot. Madison was frustrating at times with how she acted towards Lucas, Gray, and Rian. It was like she said towards the end, she didn’t believe she deserved nice things. It would have been nice to hear from her best friends again. They kind of were there in the beginning and the gone except for mention of text messages received from them. I feel like her friends would have been great help in encouraging Madison to go with the pack and never give Brent another chance because he was toxic. I loved Rian. His personality was awesome. His humor. His ability to make Madison comfortable whenever she was feeling overwhelmed. And the fact he fell for her and she fell for him first. They are cute together. I do feel like Lucas was the odd man out though. Like Lucas didn’t develop as much of a relationship with Madison. I would have really liked to see more development in the relationship between them. It was also the same with him and Rian. There is really no relationship displayed. Most of the relationship being displayed is between Rian and Gray. Nevertheless, I loved reading about the dynamic that came to fruition during the entirety of this story. Madison finally got her happiness. And Brent finally got punched in the face. Everyone got exactly what they deserve.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 6, 2022
E
Verified Purchase
ediebegonia
San Leandro, US
★★★★★ 3
Pack's Promise was okay but not great
Format: Kindle
Pack's Promise was okay but not great. I won't recommend it to anyone that I know. PRO: * Very likable characters * Lots of steamy scenes that are written very well * The spelling and grammar are good * The punctuation is good with the exception of using hyphens instead of commas. Lots of hyphens. Lots and lots of hyphens. CON: * Almost no interactions with any characters outside of Madison and the pack * Nearly no plot. They meet, get together for a heat, agree to make it permanent, done * Quite a few typos such as extraneous words, missing words and words out of order THINGS TO KNOW: * More steamy scenes than storytelling * A lot of MM & MMM, some MFMM during heat
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2023
L
Verified Purchase
LJM
Fort Morgan, US
★★★★★ 5
such a good read
Format: Kindle
Madison, Lucas, Grey and Rian were made for each other!!! First time reading from this author and I’m not disappointed!!! Absolutely love the Love in this book and couldn’t ask for a better OV!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 25, 2023

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