close promo banner icon

exhaust-gaskets

FlowTech 99360FLT - Header Gasket Set

rating-star review rating-star review 1rating-star review 2rating-star review 3rating-star review 4

$10.85

$12.06

You save: $1.21 (10%) off MSRP

Ships directly from manufacturer
Check to see if this fits your vehicle

This part fits

  1. 1966 Plymouth Satellite 5.9L V8 cid:361 cc:5917
  2. 1966 Plymouth Fury Base 5.9L V8 cid:361 cc:5917
  3. 1966 Plymouth Belvedere 5.9L V8 cid:361 cc:5917
  4. 1966 Dodge Coronet 5.9L V8 cid:361 cc:5917
  5. 1966 Dodge Coronet 5.9L V8 cid:361
  6. 1966 Dodge Charger 5.9L V8 cid:361 cc:5917
  7. 1966 Plymouth Belvedere II 5.9L V8 cid:361
  8. 1965 Dodge Coronet Base 7.0L V8 cid:426 cc:6981
  9. 1965 Plymouth Satellite 5.9L V8 cid:361 cc:5917
  10. 1965 Plymouth Fury 5.9L V8 cid:361 cc:5917
  11. 1965 Plymouth Fury 5.9L V8 cid:361
  12. 1965 Plymouth Belvedere 7.0L V8 cid:426 cc:6981
  13. 1965 Plymouth Belvedere 5.9L V8 cid:361 cc:5917
  14. 1965 Dodge Polara 7.0L V8 cid:426 cc:6981
  15. 1965 Plymouth Satellite 7.0L V8 cid:426 cc:6981
  16. 1965 Dodge Monaco 7.0L V8 cid:426 cc:6981
  17. 1965 Dodge Monaco 6.7L V8 cid:413 cc:6769
  18. 1965 Plymouth Fury 7.0L V8 cid:426 cc:6981
  19. 1965 Dodge Coronet Base 5.9L V8 cid:361 cc:5917
  20. 1965 Dodge 880 7.0L V8 cid:426 cc:6981
  21. 1965 Dodge 880 6.7L V8 cid:413 cc:6769
  22. 1965 Chrysler Town & Country 6.7L V8 cid:413 cc:6769
  23. 1965 Chrysler Newport 6.7L V8 cid:413 cc:6769
  24. 1965 Chrysler New Yorker
  25. 1965 Chrysler Imperial
  26. 1965 Chrysler 300 6.8L V8 cid:413
  27. 1965 Chrysler 300 6.7L V8 cid:413 cc:6769
  28. 1965 Dodge Polara 6.7L V8 cid:413 cc:6769
  29. 1964 Plymouth Savoy 7.0L V8 cid:426 cc:6981
  30. 1964 Plymouth Savoy 6.7L V8 cid:413 cc:6769
  31. 1964 Plymouth Savoy 5.9L V8 cid:361 cc:5917
  32. 1964 Plymouth Fury 7.0L V8 cid:426 cc:6981
  33. 1964 Plymouth Fury 6.7L V8 cid:413 cc:6769
  34. 1964 Plymouth Fury 5.9L V8 cid:361 cc:5917
  35. 1964 Plymouth Fury 5.9L V8 cid:361
  36. 1964 Plymouth Belvedere 7.0L V8 cid:426 cc:6981
  37. 1964 Plymouth Belvedere 6.7L V8 cid:413 cc:6769
  38. 1964 Plymouth Belvedere 5.9L V8 cid:361 cc:5917
  39. 1964 Plymouth Barracuda 5.9L V8 cid:361 cc:5917
  40. 1964 Dodge Polara 7.0L V8 cid:426 cc:6981
  41. 1964 Dodge 880 7.0L V8 cid:426 cc:6981
  42. 1964 Dodge 880 5.9L V8 cid:361 cc:5917
  43. 1964 Dodge 440 7.0L V8 cid:426 cc:6981
  44. 1964 Dodge 330 7.0L V8 cid:426 cc:6981
  45. 1964 Chrysler Town & Country 6.7L V8 cid:413 cc:6769
  46. 1964 Chrysler Newport 6.7L V8 cid:413 cc:6769
  47. 1964 Chrysler New Yorker
  48. 1964 Chrysler Imperial
  49. 1964 Chrysler 300 6.8L V8 cid:413
  50. 1964 Chrysler 300 6.7L V8 cid:413 cc:6769
  51. 1963 Dodge 880 6.7L V8 cid:413 cc:6769
  52. 1963 Plymouth Savoy 7.0L V8 cid:426 cc:6981
  53. 1963 Plymouth Savoy 5.9L V8 cid:361 cc:5917
  54. 1963 Plymouth Fury Base 7.0L V8 cid:426 cc:6981
  55. 1963 Plymouth Fury Base 6.7L V8 cid:413 cc:6769
  56. 1963 Plymouth Fury Base 5.9L V8 cid:361 cc:5917
  57. 1963 Plymouth Fleet Special 7.0L V8 cid:426 cc:6981
  58. 1963 Plymouth Fleet Special 6.7L V8 cid:413 cc:6769
  59. 1963 Plymouth Fleet Special 5.9L V8 cid:361 cc:5917
  60. 1963 Plymouth Belvedere 7.0L V8 cid:426 cc:6981
  61. 1963 Plymouth Belvedere 6.7L V8 cid:413 cc:6769
  62. 1963 Plymouth Belvedere 5.9L V8 cid:361 cc:5917
  63. 1963 Dodge Polara Base 7.0L V8 cid:426 cc:6981
  64. 1963 Dodge 880 6.8L V8 cid:413
  65. 1963 Plymouth Savoy 6.7L V8 cid:413 cc:6769
  66. 1963 Dodge 880 5.9L V8 cid:361 cc:5917
  67. 1963 Dodge 880 5.9L V8 cid:361
  68. 1963 Dodge 440 7.0L V8 cid:426 cc:6981
  69. 1963 Dodge 330 7.0L V8 cid:426 cc:6981
  70. 1963 Chrysler Town & Country 7.0L V8 cid:426 cc:6981
  71. 1963 Chrysler Town & Country 6.7L V8 cid:413 cc:6769
  72. 1963 Chrysler Newport 7.0L V8 cid:426 cc:6981
  73. 1963 Chrysler Newport 6.7L V8 cid:413 cc:6769
  74. 1963 Chrysler New Yorker
  75. 1963 Chrysler Imperial
  76. 1963 Chrysler 300 7.0L V8 cid:426 cc:6981
  77. 1963 Chrysler 300 6.8L V8 cid:413
  78. 1963 Chrysler 300 6.7L V8 cid:413 cc:6769
  79. 1962 Chrysler Imperial
  80. 1962 Plymouth Savoy 6.7L V8 cid:413 cc:6769
  81. 1962 Plymouth Savoy 5.9L V8 cid:361 cc:5917
  82. 1962 Plymouth Fury Base 6.7L V8 cid:413 cc:6769
  83. 1962 Plymouth Fury Base 5.9L V8 cid:361 cc:5917
  84. 1962 Plymouth Fleet Special 6.7L V8 cid:413 cc:6769
  85. 1962 Plymouth Fleet Special 5.9L V8 cid:361 cc:5917
  86. 1962 Plymouth Belvedere 6.7L V8 cid:413 cc:6769
  87. 1962 Plymouth Belvedere 5.9L V8 cid:361 cc:5917
  88. 1962 Facel Vega Facel II
  89. 1962 Facel Vega Excellence
  90. 1962 Dodge Polara 6.7L V8 cid:413 cc:6769
  91. 1962 Dodge Polara 5.9L V8 cid:361 cc:5917
  92. 1962 Dodge Dart 6.8L V8 cid:413
  93. 1962 Dodge Dart 6.7L V8 cid:413 cc:6769
  94. 1962 Dodge Dart 5.9L V8 cid:361 cc:5917
  95. 1962 Dodge 880
  96. 1962 Chrysler 300 6.7L V8 cid:413 cc:6769
  97. 1962 Chrysler 300 6.8L V8 cid:413
  98. 1962 Chrysler Town & Country 6.7L V8 cid:413 cc:6769
  99. 1962 Chrysler New Yorker
  100. 1962 Chrysler Newport 6.7L V8 cid:413 cc:6769
  101. 1961 Dodge Dart 6.8L V8 cid:413
  102. 1961 Plymouth Belvedere 6.7L V8 cid:413 cc:6769
  103. 1961 Plymouth Suburban Base 5.9L V8 cid:361 cc:5917
  104. 1961 Plymouth Sport Wagon 6.7L V8 cid:413 cc:6769
  105. 1961 Plymouth Sport Wagon 5.9L V8 cid:361 cc:5917
  106. 1961 Plymouth Savoy 6.8L V8 cid:413
  107. 1961 Plymouth Savoy 6.7L V8 cid:413 cc:6769
  108. 1961 Plymouth Savoy 5.9L V8 cid:361 cc:5917
  109. 1961 Plymouth Savoy 5.9L V8 cid:361
  110. 1961 Plymouth Fury 6.7L V8 cid:413 cc:6769
  111. 1961 Plymouth Fury 5.9L V8 cid:361 cc:5917
  112. 1961 Dodge Custom 6.7L V8 cid:413 cc:6769
  113. 1961 Dodge Custom 5.9L V8 cid:361 cc:5917
  114. 1961 Chrysler Town & Country 6.7L V8 cid:413 cc:6769
  115. 1961 Chrysler Newport 6.7L V8 cid:413 cc:6769
  116. 1961 Dodge Phoenix 5.9L V8 cid:361 cc:5917
  117. 1961 Dodge Lancer Base 6.7L V8 cid:413 cc:6769
  118. 1961 Plymouth Suburban Base 6.7L V8 cid:413 cc:6769
  119. 1961 Dodge Dart 6.7L V8 cid:413 cc:6769
  120. 1961 Dodge Dart 5.9L V8 cid:361 cc:5917
  121. 1961 Dodge Dart 5.9L V8 cid:361
  122. 1961 Plymouth Suburban Custom 5.9L V8 cid:361
  123. 1961 Chrysler 300
  124. 1961 Chrysler Imperial
  125. 1961 Chrysler New Yorker
  126. 1961 Plymouth Fleet Special 6.7L V8 cid:413 cc:6769
  127. 1961 Plymouth Fleet Special 5.9L V8 cid:361 cc:5917
  128. 1961 Plymouth Custom 6.7L V8 cid:413 cc:6769
  129. 1961 Plymouth Custom 5.9L V8 cid:361 cc:5917
  130. 1961 Plymouth Suburban Sport 5.9L V8 cid:361
  131. 1961 Plymouth Belvedere 5.9L V8 cid:361 cc:5917
  132. 1961 Dodge Seneca 5.9L V8 cid:361 cc:5917
  133. 1961 Dodge Polara 6.7L V8 cid:413 cc:6769
  134. 1961 Dodge Polara 5.9L V8 cid:361 cc:5917
  135. 1961 Dodge Pioneer 5.9L V8 cid:361 cc:5917
  136. 1960 Plymouth Sport Wagon 5.9L V8 cid:361 cc:5917
  137. 1960 Plymouth Fleet Special 5.9L V8 cid:361 cc:5917
  138. 1960 Plymouth Suburban 5.9L V8 cid:361
  139. 1960 Plymouth Suburban 5.9L V8 cid:361 cc:5917
  140. 1960 Dodge Dart 5.9L V8 cid:361 cc:5917
  141. 1960 Dodge Dart 5.9L V8 cid:361
  142. 1960 Dodge Custom 5.9L V8 cid:361 cc:5917
  143. 1960 Plymouth Custom 5.9L V8 cid:361 cc:5917
  144. 1960 Plymouth Belvedere 5.9L V8 cid:361 cc:5917
  145. 1960 Dodge Truck 6.7L V8 cid:413 cc:6769
  146. 1960 Dodge Truck 5.9L V8 cid:361 cc:5917
  147. 1960 Dodge Polara 5.9L V8 cid:361 cc:5917
  148. 1960 Dodge Phoenix 5.9L V8 cid:361 cc:5917
  149. 1960 Dodge Matador 5.9L V8 cid:361 cc:5917
  150. 1960 Plymouth Fury 5.9L V8 cid:361 cc:5917
  151. 1960 Plymouth Savoy 5.9L V8 cid:361
  152. 1960 Plymouth Savoy 5.9L V8 cid:361 cc:5917
  153. 1960 Chrysler 300
  154. 1960 Chrysler Imperial
  155. 1960 Chrysler New Yorker
  156. 1960 Chrysler Newport
  157. 1960 Chrysler Town & Country 6.7L V8 cid:413 cc:6769
  158. 1959 Chrysler Newport
  159. 1959 Chrysler 300
  160. 1959 Plymouth Custom 5.9L V8 cid:361 cc:5917
  161. 1959 Plymouth Fury Base 5.9L V8 cid:361 cc:5917
  162. 1959 Plymouth Savoy 5.9L V8 cid:361 cc:5917
  163. 1959 Plymouth Suburban Base 5.9L V8 cid:361 cc:5917
  164. 1959 Chrysler Imperial
  165. 1959 Chrysler New Yorker
  166. 1959 Plymouth Belvedere 5.9L V8 cid:361 cc:5917
  167. 1959 Chrysler Town & Country 6.7L V8 cid:413 cc:6769
  168. 1959 Dodge Coronet 5.9L V8 cid:361 cc:5917
  169. 1959 Dodge Lancer 5.9L V8 cid:361 cc:5917
  170. 1959 Dodge Royal 5.9L V8 cid:361 cc:5917
  171. 1959 Dodge Sierra 5.9L V8 cid:361
  172. 1959 Dodge Sierra 5.9L V8 cid:361 cc:5917
  173. 1959 Dodge Custom 5.9L V8 cid:361 cc:5917
  174. 1958 Plymouth Belvedere 5.7L V8 cid:350 cc:5737
  175. 1958 Dodge Suburban 5.9L V8 cid:361
  176. 1958 Plymouth Suburban Sport 5.7L V8 cid:350
  177. 1958 Dodge Sierra 5.9L V8 cid:361 cc:5917
  178. 1958 Dodge Sierra 5.9L V8 cid:361
  179. 1958 Dodge Sierra 5.7L V8 cid:350 cc:5737
  180. 1958 Dodge Sierra 5.7L V8 cid:350
  181. 1958 Dodge Coronet 5.9L V8 cid:361 cc:5917
  182. 1958 Dodge Coronet 5.7L V8 cid:350 cc:5737
  183. 1958 Dodge Custom 5.9L V8 cid:361 cc:5917
  184. 1958 Dodge Custom 5.7L V8 cid:350 cc:5737
  185. 1958 Plymouth Suburban Base 5.9L V8 cid:361
  186. 1958 Plymouth Suburban Base 5.7L V8 cid:350 cc:5737
  187. 1958 Plymouth Savoy 5.7L V8 cid:350 cc:5737
  188. 1958 Plymouth Plaza 5.7L V8 cid:350 cc:5737
  189. 1958 Plymouth Fury 5.7L V8 cid:350 cc:5737
  190. 1958 Plymouth Custom 5.7L V8 cid:350 cc:5737
  191. 1958 Dodge Royal 5.9L V8 cid:361 cc:5917
  192. 1958 Dodge Royal 5.7L V8 cid:350 cc:5737
  193. 1958 Dodge Lancer 5.9L V8 cid:361 cc:5917
  194. 1958 Dodge Lancer 5.7L V8 cid:350 cc:5737
  195. 1958 Dodge Suburban 5.7L V8 cid:350
  196. show all...
Authorized Dealer

About this product

Part #: 99360FLT

Replacement Header Gaskets for Chrysler 361-440 Big Block headers. Kit consists of (2) Header flange gaskets and (2) 3" collector gaskets

More Details

Collector Gaskets IncludedYes
Gasket LineP73 Ferroglass Non-Asbestos
Port ShapeRectangle
Port Size1.650 in. x 1.520 in.
Thickness0.062 in.

See what our community says about flowtech products

product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Price and performance
Is this your first time buying from this brand? Did you consider other brands?
Yes, first time
Was it easy to install? Any installation tips that will help others?
Personally installed
View on Justin's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
Got it as a gift to finish off my 2.5 inch custom catback exhaust.
Is this your first time buying from this brand? Did you consider other brands?
Yes it is my first time using this brand.
Was it easy to install? Any installation tips that will help others?
I installed it with some friends. A welder is very helpful since hangers are not included with the muffler. I reused the old hangers off of the stock exhaust and it works pretty well.
Once you've had a chance to use the product, did it meet your expectations?
Completely blew my mind how good it made my car sound, 100% worth it, especially for only $32. Car is quiet at low rpm, even with resonator deleted, loud, but sounds great at high rpms. Don't notice any drone at all.
Any additional comments?
Great if you want to get some more sound out of your car without breaking the bank or making it super loud.
View on Blake's build
product page reviews icon 0product page reviews icon 1product page reviews icon 2product page reviews icon 3product page reviews icon 4
What made you choose this particular product?
I have chosen this part because I've always wanted glasspacks
What were you trying to accomplish by adding this product?
I was trying to achieve slightly better horsepower and a louder sound
Was it easy install? Any installation tips that will help others?
Had the exhaust professionally installed
Once you’ve had a chance to use the product, did it meet your expectations?
It meet my expectations and more, it gave me the loudness I was looking for plus a amazing sounding rumble
Any additional comments?
When doing exhaust I would always have it professionally welded
View on Leonel's build
California prop 65 warningWARNING: Cancer and Reproductive Harm www.p65warnings.cs.gov

*Some manufacturer restrictions apply.

About FlowTech

Flowtech Performance Exhaust was founded in 1994, by exhaust market expert Gary Biggs, with the mission of delivering high quality performance exhaust at a great value. The mission was successful and in less than two decades Flowtech became the leader in value priced exhaust systems. Flowtech cornered its place in the market with aggressive and memorable product names such as Raptor™, Terminator™, Afterburner™ and Warlock™. Flowtech even revived some names from back in the day like Purple Hornies™. Flowtech made its mark with simple yet effective improvements like slotted port flanges giving added wiggle room during header installation. They dimpled their tubes at the port to make more room for the header bolts and they parallel ground their flanges to assure a tight seal. Flowtech innovations include their unique Afterburner headers which separated the odd firing cylinders with a velocity tube to improve scavenging. Their patented Warlock bypass muffler won the SEMA best new product award for its revolutionary open or closed design in 1996. When Flowtech became part of Holley Performance Products in 1999, the company continued to focus on value, with an emphasis on late model cars and trucks. Headers and exhaust systems were developed for Mustangs, Camaros, and all types of full size trucks - including diesels. The same innovation continues today with the addition of universal X-pipe kits and X-pipe kits with built in cut-outs. Continuous product updates and improvements to manufacturing processes will keep Flowtech the leader in value priced exhaust systems. We hope you enjoy your Flowtech product as much as we enjoy building it!

shipping-worldwide from warehouse

we ship worldwide!

Based in California with 3 warehouses across the country, we’re sending out shipments everyday of the week, even Saturdays. Because your next mod shouldn’t have to wait.

+ FREE GROUND SHIPPING ON U.S. ORDERS OVER $99
Globe international shipping icon
Have a question? Ask an Expert!

Finding the best parts can be tricky

- but not to worry! Our team of experienced American Muscle, JDM, Euro, and off-road tuners are ready to answer your questions (as long as we’re not in the garage wrenching on our own builds).

chat-iconLive Chat
Ask our expert tuners anything!
call_iconCall Us
1 (800) 959-4304
Decorative testimonal quote icon

What do you get when you mix Facebook, Amazon, and your favorite online car forum? You get Wheelwell.com.

undefined supporting their testimonial

Hot Rod Magazine

Decorative testimonal quote icon

Wheelwell helps you organize all your stuff for your car, I’ve loaded all my cars on Wheelwell and you can see all the parts I’ve put in them and that may help you make a decision with your own build.

Matt Farah supporting their testimonial

Matt Farah

The Smoking Tire / The Drive

Decorative testimonal quote icon

This is an awesome new site where enthusiasts can get together and figure out what products work best on their ride.

undefined supporting their testimonial

The Truck Show Podcast