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ZZ-4 Tight-Fit Small Block Chevy Block Hugger Headers, Black

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Specs
Material Type:
Steel
Sold in Quantity:
Pair
Finish:
Painted
Flange Style:
Oval Port
Header Tube Type:
Block Hugger
Gasket(s) Included:
Yes
Hardware Included:
Yes
Tube O.D.:
1.63
Port Height:
1.67
Port Width:
1.29
Flange Thickness:
.38
Header Dimension A:
4.25
Header Dimension B:
10.50
Header Dimension C:
18.38
Collector Diameter :
2.5
ZZ-4 Tight-Fit Small Block Chevy Block Hugger Headers, Black
ZZ-4 Tight-Fit Small Block Chevy Block Hugger Headers, Black
ZZ-4 Tight-Fit Small Block Chevy Block Hugger Headers, Black

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Please note the following about this product:

  • This item is sold as a pair.

Details

Reviews (1)

Q & A (8)

What's in the Box

Info

If you are using 1992-and-later LT4 style D-port heads in your street rod, these tight-fit headers are for you. The tight-fit design fits in a wide variety of applications, and the shorty headers have built-in OEM-style donut seals on the collectors so no gaskets or collector reducers are needed. 

  • Compact design
  • OEM-style exhaust pipe connection
  • 3/8” thick flanges w/ oval 1.29" x 1.67" port configuration
  • Header bolts and exhaust gaskets are included
  • Collector reducers are not included but are offered below
  • May require modifications to accommodate knock sensors in some applications

Header Dimensions (GIF)

Application

  • 1992 and later LT-4 engines
  • Compact design will fit a wide variety of early street rods
  • Will not fit 1955-1957 Chevys, Camaros, Chevelles or other modern cars with crossmembers under the two center exhaust ports

Customer Reviews

Rated 3 out of 5 by 1 reviewers.
RATING BREAKDOWN
1 reviews
5 Stars
0
4 Stars
0
3 Stars
1
2 Stars
0
1 Star
0
RECOMMEND THIS PRODUCT:

Vsoree
Verified Purchaser

ZZ-4 Tight-Fit

May 14, 2014
Good fit up top, But to close to Knock sensors at the bottom of both sides.
Yes, I recommend this product.
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Page 1 of 1

Product Q&A

8 questions : 8 answers

1 answers

Will they clear the knock sensor/ have 02 bungs Installing the EFI LT1 driveline in a street rod requiring knock sensor and O2 sensors. Do these headers clear the knock sensor on the passenger side (FYI: round port shorties don't). Do they have O2 sensor bungs?

JimBow
Florida, USA
April 10, 2014

Will they clear the knock sensor/ have 02 bungs Installing the EFI LT1 driveline in a street rod requiring knock sensor and O2 sensors. Do these headers clear the knock sensor on the passenger side (FYI: round port shorties don't). Do they have O2 sensor bungs?

Answers

April 10, 2014
EricM
Even tho the port configuration is different than a round port the overall layout of headers number 9300104 is the same as the other tight fit or block hugger headers and will likely have interference with the knock sensor in question. These do not come with any O2 sensor bungs in them.
1 answers

alternator bracketry ? these headers will replace my current ramhorn exh. manifold on my 1966 c-10 283 ci. which served as attachment point for alternator. what alternator bracket can I now use with these zz4 headers ?

goofa
dunedin, fl
December 27, 2013

alternator bracketry ? these headers will replace my current ramhorn exh. manifold on my 1966 c-10 283 ci. which served as attachment point for alternator. what alternator bracket can I now use with these zz4 headers ?

Answers

December 27, 2013
EricM
You can use the same brackets you have now by making a spacer the to put between your bracket and the header flange. To determine the length of spacer you need to make just measure the length of your current manifold and subtract the thickness of the header flange.
1 answers

what is the tube wall thickness please ? 16 G ?

goofa
December 26, 2013

what is the tube wall thickness please ? 16 G ?

Answers

December 26, 2013
EricM
These are made from 16 gauge tubing.
1 answers

will these work with 32 ford TCI chassis with vega steering?

driller2112
North Dakota
June 01, 2013

will these work with 32 ford TCI chassis with vega steering?

Answers

June 03, 2013
Jason
With all the variations in chassis and mount locations we offer the following information to help determine fit: Tube O.D. : 1.63 " Collector Diameter : 2.50 " Flange Style : D Port Flange Thickness : .38 " Port Height : 1.67 " Port Width : 1.29 " Header Dimension A : 4.25 " Header Dimension B : 10.50 " Header Dimension C : 18.38 " Hardware Included : Yes Gasket(s) Included : Yes
1 answers

What Y-pipe do these go with, or do they interface with the stock exhaust in the same way as the stock cast-iron manifolds?

March 08, 2012

What Y-pipe do these go with, or do they interface with the stock exhaust in the same way as the stock cast-iron manifolds?

Answers

March 09, 2012
John
Part number 9300104 These headers are NOT designed for direct hook up to any specific application. The collector has the OEM style seal so the exhaust shop can simply use a 3 bolt flange on the head pipe and flare the end to create the seal. The headers drop down 10 inches from the top of the ports and at the center of the two center ports. A Y-pipe would need to be made by your exhaust shop if so desired.
1 answers

will these headers clear angle plugs

gofast62
danville va.
January 09, 2011

will these headers clear angle plugs

Answers

January 12, 2011
Tom
Yes, part number: 9300104, are designed for D port head angle plug heads found on ZZ4 crate engines 92 and later LT1, and LT4 V8's. They will not fit LS1 or LS6 engines.
1 answers

well this header work on edelbrock performer r.p.m. d-port angle plug cylinder heads?

Jim
Idaho
January 30, 2011

well this header work on edelbrock performer r.p.m. d-port angle plug cylinder heads?

Answers

February 03, 2011
Waymon
Thank you for your interest in our D-PORT TIGHT-FIT S/B CHEVY HEADERS, PLAIN, Item #: 9300104. Unfortunately these headers will not work with the Edelbrock heads. The only heads that those headers fit are the GM ZZ-4 heads or LT-1 / LT-4 heads. We have the S/B CHEVY TIGHT-FIT HEADERS FOR ANGLE PLUG HEADS, PLAIN, tem #: 9308037. These may work for you, they have a primary tube size of 1-5/8 inch and 2-1/5 inch collectors.
1 answers

Will they fit on a 350 engine in a 87 gmc. 4wheeldrive truck

Riverman
Wadley alabama
August 04, 2015

Will they fit on a 350 engine in a 87 gmc. 4wheeldrive truck

Answers

August 05, 2015
Eric
Expert
No these headers do not work well in a 1987 GMC pickup. Sorry we do not have the correct headers for your application.
Page 1 of 1

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